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dart_pdf_editor

7.0.05.5K downloads/moben-milanko/dart-pdf ↗New releases in your daily digest, changelog included.

Flutter PDF editor and viewer for Dart: native rendering, text selection, search, annotations, forms, signatures, page editing, and document comparison.

Last release 3 days ago
05 Oct 2026
Ships on a steady schedule
a new release about every 9 days
Nearly every release is documented
notes for 43 of 44 stable releases
Nothing withdrawn
no release was ever pulled
3 months old
44 releases · first in 2026

Release timeline

44 releases since 2026

2026

20262026

One column per month.

Releases

7.0.05 Oct 2026
Add DartPDF 7.0.0 AppStream release notes
Add DartPDF 7.0.0 AppStream release notes
Open source →
Additional notes
Open documents in Select mode; links and host page widgets remain usable, and long-press selects text there. Cmd/Ctrl+A selects page text in Select and Hand modes.

Pan horizontally to a search match when zoomed in.

Keep freehand ink previews at the committed opacity and align desktop text context-menu actions with the touch selection chip.

Skip OCR spans already present in page text and show clearer OCR progress.

BREAKING: built on material_ui. The library's widgets now come from package:material_ui (and package:cupertino_ui) instead of package:flutter/material.dart, which Flutter is retiring. Their Theme, ThemeData, MaterialLocalizations, ScaffoldMessenger, InputDecoration and friends are different types from the legacy ones. Hosts on either library keep working; see doc/MIGRATING-7.0.0.md.

A host on the legacy MaterialApp keeps its look: a small bridge carries the host theme's colour scheme, text and icon themes, platform and density into the editor, and shows notices as SnackBars on the host's ScaffoldMessenger. Legacy component themes and ThemeExtensions no longer reach the editor; use PdfEditorThemeData or a material_ui Theme around the editor instead. Build with --dart-define=PDF_LEGACY_MATERIAL_BRIDGE=false to compile the bridge out when no host uses the legacy library (kPdfLegacyMaterialBridge).

PdfMaterialHost (installed by PdfViewer, PdfReader, PdfEditorView and PdfComparisonView) now supplies material_ui's localizations, Theme and surface whenever the host lacks them - a legacy MaterialApp, a CupertinoApp or a WidgetsApp. It installs the material_ui and cupertino_ui localizations for the ambient locale whenever they are missing, which also fixes a crash under a material_ui app that registered the generated delegate list with a locale material_ui does not cover by default (Ukrainian, for one).

Add PdfEditorLocalizations.delegates (the editor's delegate plus material_ui's GlobalMaterialLocalizations.delegates) and PdfEditorLocalizations.supportedLocales, the recommended list for an app's localizationsDelegates. The generated DartPdfEditorLocalizations.localizationsDelegates still lists the legacy flutter_localizations delegates, which suit a legacy host only.

Add PdfEditorThemeData.primary and PdfEditorThemeData.brightness: set either and the stock chrome draws with a colour scheme seeded from them, whatever theme the host has.

Remove the APIs deprecated in 5.x and kept through 6.0.0: PdfEditingPreferences.themeMode (use themePreference), the ButtonStyleButton form of PdfDialogSubmit (use PdfDialogSubmit.action), and pdfSearchInputBorder (use pdfSearchFieldBorderRadius).

Public parameters typed with Material classes now take the material_ui ones (PdfDropdown.decoration is a material_ui InputDecoration).

Tests that import the legacy library find nothing with type-based finders on editor widgets (find.byType(TextField) matches the legacy class); use the pdf-* keys or import material_ui.

Requires Flutter 3.47.0 (flutter: '>=3.47.0', material_ui 1.4's floor); the Dart language version stays 3.5.

Toolbar strips (the open tool group's card) draw their own ink surface, so pressed and hovered splashes show over the card's fill under every host.

From the same repository

ben-milanko/dart-pdf

6.0.03 Oct 2026

Describe 6.0.0 in Linux release metadata

Release DartPDF 6.0.0
Describe 6.0.0 in Linux release metadata

Co-authored-by: dart-pdf release automation probe actions@github.com

Open source →

Additional notes

Breaking: PdfDialogSubmit.child is now Widget, so an arbitrary host control can be the submit action. Code reading Material button properties from it must keep its own button reference or check/cast the widget type. The original constructor, themeMode and pdfSearchInputBorder remain available and deprecated; their removal is deferred to 7.0.0.
PdfRenderWorker gains trimMemory(): subclasses inherit its no-op default; hosts using implements PdfRenderWorker must implement the new method. Workers now use platform-sized decode budgets and release reconstructible caches on memory pressure and mobile backgrounding.
Stream native render records directly into the command buffer and keep text offsets in unboxed typed arrays, reducing allocation and worker memory.
Fix deep zoom losing its scene when a later zoom supersedes an image refine.
The Select tool selects page text as well as annotations. Hand mode retains double-click word selection while single drags pan the page.
Export PdfDropdown and PdfDropdownItem, the drop-down picker the editor's own dialogs use: its options open through the PdfEditorPresenter's menu, so it works under any host. Companion packages (dart_pdf_printing's print preview) use it too.
Declare the real Flutter floor: flutter: '>=3.44.0' (was >=3.24.0). 5.0.0 already needed 3.44, since the thumbnail strip's reorder uses ReorderableListView.onReorderItem, which first shipped in Flutter 3.44, so this strands nobody. A new floor-analyze CI job analyzes the package on Flutter 3.44.0 to keep the floor honest.
Add PdfThemePreference and PdfEditingPreferences.themePreference, the saved theme choice as an editor-owned enum instead of Material's ThemeMode. It is stored under the same key, so a choice saved by an older build reads back. themeMode still works and is deprecated (removed in 7.0.0); map the new value to ThemeMode in the host.
Add PdfDialogSubmit.action(onSubmit:, child:), which marks any widget as a dialog's Enter action. The ButtonStyleButton-only default constructor is deprecated (removed in 7.0.0). Enter now tells a focused command button (which keeps Enter) from a focused value control such as segments, a dropdown or a checkbox (Enter submits) by semantics role rather than by Material widget type, so controls from any design system classify the same.
Add pdfSearchFieldBorderRadius; pdfSearchInputBorder (a Material OutlineInputBorder) is deprecated (removed in 7.0.0).
Move the headless model types (PdfMeasurementScale, PdfInkSignature, PdfSavedSignature, the trackpad signature capture types, PdfCustomStamp, PdfStampDateFormat/PdfStampTimeFormat, the picker and prompt typedefs, PdfSnapshot, PdfClipboardPdf, PdfSelectedContentImage, PdfColorFormat, PdfDockablePanel, PdfPanelDock, PdfSidebarSide) out of the files that hold their Material dialogs. They are exported exactly as before; PdfEditingController and PdfPageView no longer import Material through them, which a new CI check (tool/check_design_imports.dart) keeps true. PdfDockablePanel.icon values are now plain IconData constants equal to the Material icons they were.
Localize the remaining English strings: the guides, snapping and rulers dialog, the search field placeholder, the page-range dialog's default title and button, the styled-text dialog's "Keep" font label, the progressive loader's error and the crop overlay's tooltips.
README: a "Customising the UI" section covering uses-material-design and localization delegate registration.
Add PdfEditorCommands, the stock toolbar's intents as one public object: armTool/toggleTool (with the prerequisites - a measure tool asks for the measuring scale, the signature tool for a signature), openGroup, applyMarkup, applyColor, flatten/flattenFormFields (with an Undo notice), hand/select/clear, and recentTools. PdfEditorView owns one (or takes the host's through PdfEditorView.commands) and provides it to everything beneath it; a standalone PdfEditingToolbar shares the commands above it when they drive the same controller and otherwise owns its own. Find them with PdfEditorCommands.of(context) / maybeOf, or place a PdfEditorCommandsScope yourself. Swapping the controller restarts the recent tools and keeps the open tool group, as the toolbar always did. Its prompts and notices go through PdfEditorPresenter (below).
Add PdfCommand (id, icon, label, tooltip, shortcut, enabled/selected listenables, category, invoke) and PdfEditorCommands.catalog(context): the editor's tools and markup kinds in dock order, and, under PdfEditorView, its panels, view options, view modes and Save / Save as - filtered by the view's features - for a command palette or menu.
Add ordered toolGroups (a List<PdfToolGroup>, default pdfToolGroups) to PdfEditingToolbar and PdfEditorView: reorder or trim the dock, or add groups of your own. PdfToolEntry.command(PdfCommand) puts a host action in a group beside the stock tools. PdfToolGroup gains kind (which stock group's behaviour it has, and which groups/features.toolGroups value filters it; defaults to the stock group named by its id), labelledTools and labelBuilder. A group the toolbar doesn't know no longer throws.
Behaviour change: under PdfEditorView (or a PdfEditorCommandsScope), a viewer tool shortcut now arms through the commands, so M asks for the measuring scale before arming a measure tool and H asks for a signature when none is saved, exactly as the toolbar does. A bare PdfViewer arms directly, as before.
Under PdfEditorView the toolbar's open group and recent tools now live in the view's commands, so they survive the toolbar remounting (a dock or breakpoint change).
Add PdfEditorPresenter, how the editor shows things: dialog, sheet, menu (an anchor rectangle plus PdfMenuItem/PdfMenuDivider entries), notice (message, kind, optional Undo), and the prompts text, styledText, confirm, link, color (PdfColorResult.picked or .sampleFromPage), font, formChoice, measurementScale, measurementInput (calibration length, volume depth), pageRange, splitRanges and signature, each with a small immutable request type. Every method defaults to today's stock UI; extend the class (don't implement it) and override the ones you want. PdfEditorView, PdfViewer and PdfReader take presenter:, or put a PdfEditorScope (an InheritedTheme) above them; PdfEditorPresenter.of(context) finds it. Stock dialogs carry the scope into their routes, so the prompts they open in turn - the stamp editor's colour picker and signature pad, the annotation library's rename, colour processing's picker - ask the same presenter. Every editor notice, popup menu, bottom sheet and dialog now goes through it (tool/check_design_imports.dart's showMenu, showModalBottomSheet and ScaffoldMessenger counters are at 0).
PdfEditorView.textPrompt/styledTextPrompt and PdfViewer.editingTextPrompt/editingStyledTextPrompt keep working and, when set, take precedence over the presenter's text prompts for that widget's subtree. That fixes the places that ignored them: the author-name prompt, the annotation library's four rename/group prompts, and a saved annotation's name from the annotation menu. The text-selection "Add link" and the link tool now ask PdfEditorPresenter.link (there was no way to replace that dialog). The six colour pickers that called showPdfColorPicker directly ask PdfEditorPresenter.color. PdfEditingToolbar.textPrompt/styledTextPrompt and the textPrompt of showPdfAnnotationMenu/showPdfFormFieldMenu default to the new pdfPresentTextPrompt/pdfPresentStyledTextPrompt, which ask the presenter (stock UI unchanged).
The font menu's picker result is public: PdfFontChoice (sealed: PdfStandardFontChoice, PdfBundledFontChoice, PdfPlatformFontChoice, PdfDocumentFontChoice, PdfLoadFontChoice) and its catalogue rows, PdfFontCatalogEntry. showPdfFontMenu still builds the catalogue and applies the pick; only the picker in between is the presenter's.
showPdfDialog keeps its signature and route (in-view, no native-window promotion; Enter submits through PdfDialogSubmit). It no longer asserts MaterialLocalizations, and its barrier label comes from the editor's own localizations (new string dialogDismiss).
showPdfRemoveSignatureDialog is now a stock confirm (unchanged look).
The stock editor runs under any host: PdfViewer, PdfReader, PdfEditorView and PdfComparisonView work under a CupertinoApp or a plain WidgetsApp as well as a MaterialApp. Each wraps its content in the new PdfMaterialHost, which supplies what the stock (Material) chrome needs and the host lacks - Material and Cupertino localizations (from flutter_localizations, English where a locale has none), a Theme derived from the host's CupertinoTheme or, failing that, its platform brightness, DefaultSelectionStyle and IconTheme, and a transparent Material surface. Under a host that already has a Theme and both localizations it adds nothing. Wrap any stock widget you mount on its own (a PdfEditingToolbar beside your own viewer) in PdfMaterialHost the same way.
What builds under the root navigator re-injects those too: showPdfDialog (so it now opens from any context, not just from inside the editor), the presenter's popup menus, its bottom sheets (a library-owned route, showModalBottomSheet's presentation unchanged) and the fullscreen reflow image.
Notices show under any host: with no ScaffoldMessenger above, PdfEditorPresenter.notice's default now shows the notice (and its Undo) as a SnackBar-styled toast in the root overlay instead of returning false.
Every editor text field (and the reflow view's SelectableText) uses the new pdfTextContextMenu, the platform's stock context menu with the localizations it needs re-injected - a right-click or long-press under a non-Material host used to paint an error widget. Under a Material host it is the default menu. Use it on text fields of your own dialogs.
The ten DropdownButton/DropdownButtonFormFields (line type, line endings, scale and calibration units, stamp date/time format, the styled text font family) are now a dropdown that opens through PdfEditorPresenter.menu, drawn like the DropdownButton it replaces and keeping its keys; its options open as a popup menu over the button. DropdownButton's menu route had no hook for running under a non-Material host.
Fix: the form tool's double-tap fill now runs a field's keystroke and validation scripts (AFNumber_Keystroke, AFRange_Validate, ...), refusing characters and invalid values exactly as reading mode does. Both modes fill through one component (the page's form layer); the form tool keeps its own taps (select, move, resize) and hands its double-tap over.
tool/check_design_imports.dart also counts text fields without the shared context menu; it and the DropdownButton counter are at 0.
Add PdfEditorThemeData, the editor's design tokens: success/warning/ danger/info status colours (the signature and review pills), the sectionLabel style, compactWidth and toastLift, plus canvas tokens in viewer. Provide it with PdfEditorView(theme:) or PdfEditorScope(theme:); read it with PdfEditorThemeData.of(context). Defaults equal the old literals. PdfEditorScope also gains platform and PdfEditorScope.platformOf (the in-page text editors' Apple caret correction reads it instead of the Material theme's platform).
PdfViewerThemeData gains merge, copyWith, lerp and the canvas tokens that were hard-coded: marqueeColor, snapGridColor, alignmentGuideColor, redactionHatchColor, rulerBackgroundColor/ rulerForegroundColor/rulerAccentColor, chipColor/ chipForegroundColor, handleSize, inlineSelectionHandleColor and diffInsertedColor/diffDeletedColor/diffReplacedColor; PdfScrollbarThemeData gains markerColor, merge, copyWith and lerp; PdfViewerTheme.maybeOf. The stock fallbacks now resolve in one place.
Add PdfEditorView.headerBuilder, which builds the header from PdfHeaderParts (page number, zoom, search, view options, panel switch, save, the compact Controls button, compact, the stock header, and bar(...) in the stock look). Export pdfShellCompactWidth.
Add context-menu entry builders: annotationMenuEntries, textMenuEntries and formFieldMenuEntries (on PdfViewer and PdfEditorView; textMenuEntries on PdfReader) receive the stock rows and return the rows to show. PdfMenuEntry.id names stock rows by their pdf-* key; pdfAnnotationMenuEntry/pdfTextMenuEntry build rows in the stock style; PdfFormFieldMenuRequest describes the field menu. showPdfAnnotationMenu/showPdfFormFieldMenu take entriesBuilder:.
Add PdfEditorPresenter.actionBar and readout, which draw the floating chips (PdfActionBarRequest: the touch annotation selection, touch text selection and image crop chips with their actions as data; PdfReadoutRequest: the measurement and style readouts). The defaults return the stock chips unchanged.
Add PdfViewer.showInlineTextStyleChip (and on PdfEditorView) to turn off the touch text-style chip over an in-place text editor.
Add PdfViewerController.globalRectOf(page, rect), a page-space rectangle's on-screen position, and selectionGlobalRect, a ValueListenable<Rect?> of the selection's on-screen bounds.
Layout change: the editing toolbar's phone breakpoint is now the shells' compact width, 700 (was 600), so between 600 and 700px wide the toolbar docks below the viewer as a solid bar, matching the header and panels, which were already compact there. PdfEditingToolbar.mobileBreakpoint is 700; a PdfEditorThemeData.compactWidth moves both.
Add PdfReader.headerBuilder: the reader's header from the same PdfHeaderParts PdfEditorView hands out (page number, zoom, search, view options, panel switch, the compact Controls part; save is always null).
Add PdfHeaderParts.saveButton(enabledWhenUnchanged:), a save button that stays enabled while the document is unchanged and saves when pressed - for hosts whose save shares or exports. The ⌘S / Ctrl+S shortcut still saves only when there is something to save (or with alwaysAllowSave).
Add PdfEditorView.extraPanels and PdfEditorPanel: a host's own dock panels beside the stock ones, with a panel switch toggle, a resizable frame whose move handle redocks them to any edge, and a bottom sheet on compact layouts. Their dock, width and visibility persist by id (PdfEditingPreferences.extraPanelDock/extraPanelWidth/ extraPanelOpen), or the host keeps visibility in a ValueNotifier (PdfEditorPanel.open). PdfSidebarPanelFrame.hostPanel gives a host panel's frame its move handle. Host panels dock standalone; they do not join a stock panel's tab group.
The viewer's keyboard commands are intents: PdfCopyIntent, PdfCutIntent, PdfPasteIntent, PdfSelectAllIntent, PdfDismissIntent, PdfUndoIntent, PdfRedoIntent, PdfDeleteSelectionIntent, PdfAutosizeTextBoxIntent, PdfNudgeSelectionIntent and PdfArmToolIntent. pdfViewerDefaultShortcuts holds the stock bindings (unchanged); PdfViewer.shortcuts (and viewerShortcuts on PdfEditorView and PdfReader) replaces them. A Shortcuts above the viewer can bind more keys to the intents, and an Actions above it overrides what one does (the viewer's actions are Action.overridable).
Add PdfSignaturePad and PdfSignaturePadController, the signature dialog's drawing surface as a widgets-only widget: pointer and stylus capture with pressure, the predicted lead, and trackpad drawing, over a controller holding the strokes, ink and pen (toSignature()). PdfSignatureDialog is built on it, with the same keys and behaviour.
Add PdfPreferencesStore and PdfEditingPreferences(store:), so the preferences can live somewhere other than the device's shared_preferences (PdfSharedPreferencesStore is the default; PdfMemoryPreferencesStore keeps them in memory).
Fix a viewer controller swap on PdfEditorView/PdfReader: handing in a controller where the shell owned one disposed the old controller while the viewer's pages still used it ("_PdfForwardingListenable used after being disposed"), and swapping one host controller for another left the new one unbound. The viewer is now rebuilt bound to the new controller, and a replaced owned controller is disposed at the end of the frame.
New pdf-* keys for tests that should not depend on Material widget types (they keep working after the move to material_ui): the text prompt and its field, the signature dialog's Done/Cancel, the colour picker's OK/Cancel, the stamp editor's Save, annotation list rows and checkboxes, the link dialog's fields, the thumbnail list and its delete buttons, the toolbar's save, ink confirm/discard, delete, guides dialog and sliders, the identity name field, the stock popup menu divider, the text context menu, and the loading indicators.

Open source →

5.1.129 Sept 2026

Bump the app to 5.1.1+41 and the lockstep package suite to 5.1.1 (dart_pdf_cli 0.2.2, dart_pdf_editor_flutter_gpu 0.4.2, dart_pdf_printing 0.2.2), wit

Bump the app to 5.1.1+41 and the lockstep package suite to 5.1.1
(dart_pdf_cli 0.2.2, dart_pdf_editor_flutter_gpu 0.4.2, dart_pdf_printing
0.2.2), with every runtime inter-package constraint at ^.
This is a patch release: no public API breaks since 5.1.0, and one addition
integrators may see:

dart_pdf_editor: PdfEditingController gained committedInksOn(page) and
retireCommittedInk(page, throughRevision:). committedInkOn is unchanged
and returns the newest commit.

Write the 5.1.1 changelog sections from the one commit since app-v5.1.0,
the ink afterimage fix (#986): quick back-to-back ink commits each hid the
previous one on screen until the page re-rendered, because the editing
overlay kept only the latest commit as its afterimage. Commits now
accumulate and retire per page once the raster and annotation layer are
current. The other packages carry a version-bump entry. Dev dependency
ranges (<6.0.0) already admit 5.1.1.

Store notes cover the ink fix and note that 5.1.1 includes 5.1.0's
improvements, written platform-neutral per release-notes/README.md, across
20 iOS locales, 21 Play changelogs (41.txt) and both Linux metainfo copies.
The forms guide now says it applies to 5.1.1.

Co-Authored-By: Claude Opus 5.5 noreply@anthropic.com

Open source →

Additional notes

Fix ink written in quick succession disappearing from the page. The editing overlay kept only the latest ink commit as its afterimage, but ink auto-commits 800 ms after the last stroke, so the next glyph could commit before the page had drawn the previous one; the new revision restarted the annotation layer's pass and the earlier glyph was painted nowhere until the page re-rendered, while the annotation list still showed it. Back-to-back ink commits now accumulate, and each page's afterimages are retired only once its raster and annotation layer are both current.
Add PdfEditingController.committedInksOn(page), every ink commit on a page that has not reached its raster yet (oldest first), and retireCommittedInk(page, throughRevision:), which the viewer calls once a page shows that revision. committedInkOn is unchanged and returns the newest of them.

Open source →

5.1.028 Sept 2026

Bump the app to 5.1.0+40 and the lockstep package suite to 5.1.0 (dart_pdf_cli 0.2.1, dart_pdf_editor_flutter_gpu 0.4.1, dart_pdf_printing 0.2.1), wit

Bump the app to 5.1.0+40 and the lockstep package suite to 5.1.0
(dart_pdf_cli 0.2.1, dart_pdf_editor_flutter_gpu 0.4.1, dart_pdf_printing
0.2.1), with every runtime inter-package constraint at ^.
This is a minor release: no public API breaks since 5.0.0, with two things
integrators should know:

dart_pdf_editor: DartPdfEditorLocalizations gained the abstract getters
sigUseTrackpad and sigTrackpadHint; a custom subclass implements them,
extending a bundled locale class picks them up.
pdf_graphics: the render-command codec is now wire format v11 (v10 paint
dedup and aligned path blocks, then Type3 cell back-references). Buffers
are not compatible across versions, and deserializeCommands /
deserializePageText throw FormatException on a mismatch.

Write the 5.1.0 changelog sections from the commit bodies since
app-v5.0.0: the P-521 order fix, faster ECDSA, tolerant zlib inflate on
the web, the object-cache key and its side map, T-table AES, web SHA-2,
JPEG 2000, in-place updates on recovered documents, rollbackTo and
openAppended(password:) in pdf_cos; the page-loss fix under a short /Count,
linear page loops, reusable signature crypto cores and onFields in
pdf_document; the flagged masked-image output change, codec v10/v11,
cached luminosity masks, the revision-stable colour context, ICC, colorant
buffer and text-extraction speedups in pdf_graphics; trackpad signatures,
annotation previews, touch row menus, the moved-stamp white box, the web
worker fixes and in-place revisions in dart_pdf_editor; the new overprint
and ICC fixtures. Dev dependency ranges (<6.0.0) already admit 5.1.0.

Store notes cover trackpad signatures, annotation previews, touch row
menus, the moved-stamp fix, the page-loss fix, P-521 signatures and the
speedups, written platform-neutral per release-notes/README.md, across 20
iOS locales, 21 Play changelogs (40.txt) and both Linux metainfo copies.
The forms guide now says it applies to 5.1.0.

Co-Authored-By: Claude Opus 5.5 noreply@anthropic.com

Open source →

Additional notes

DartPdfEditorLocalizations gained abstract getters sigUseTrackpad and sigTrackpadHint. A custom subclass must implement them; extending a bundled locale class picks them up.
Draw signatures on the trackpad, the way Preview does. The signature pad offers "Use trackpad" when showPdfSignatureDialog / PdfSignatureDialog get a trackpad: capture (defaulting to PdfTrackpadSignatureCapture.platform) whose isAvailable() reports one: the trackpad surface maps absolutely onto the pad, a finger down is the pen down, any key finishes, clicks are absorbed and losing app focus ends it. Flutter pointer events carry no absolute finger positions, so the host supplies the capture; the DartPDF app does on macOS, Windows and Android.
Lead each row of the annotation sidebar and the annotation library with the annotation's own rendered appearance (PdfAnnotationAppearancePreview), falling back to the subtype icon when there is no appearance stream.
On touch, fold the annotation sidebar's lock and delete and the bookmark panel's add-child, edit and delete into a per-row more (⋮) menu. Desktop keeps the hover-revealed icons.
Stop a moved stamp leaving a white box over the page until its re-render landed. The overlay no longer washes the old spot with paper, and the appearance layer drops pictures whose stream and /Rect are no longer live as soon as a revision lands.
Stop one rejected stream killing the web render worker. When the browser's DecompressionStream refused a payload, the unobserved output future escaped as an uncaught error, fired Worker.onerror, and every later page of the document fell back to main-thread rendering.
Compile the web render worker at dart2js -O3 (0.81-0.86x of the worker's record time). build_web_worker takes -O<n> / --optimization-level (default 3) and now exits non-zero when the compile fails.
Apply editor revisions to the render workers in place. Native worker isolates grow a buffer instead of copying the whole document per edit (growth per edit on a 60 MB file: 188 MB to 0.5 MB), roll back in place on undo and keep their image caches, and the pool seeds its urgent lane from the host's revision view through the new, non-breaking PdfRenderWorker.updateRevisionTo. The web worker takes revisions in place too instead of restarting per edit, undo and redo; an older cached worker bundle keeps the restart path.
Stop hashing the whole file on the UI isolate when opening a PDF without a trailer /ID with a form-secret store attached; the decision waits for the first read of the form's fields. Undo reopens with the session's authenticated keys, so an AES-256 undo no longer re-runs the password hash (about 26 ms to under 1 ms).
Keep signature validation work across revisions. The controller holds each signature's crypto core by field name and drops it only where signed bytes can change, so an edit, undo or a trust store arriving no longer re-hashes signed files, and on native platforms a miss covering 512 KB or more is hashed on a helper isolate. A signature whose /ByteRange can never validate is not sent there again.
Rebuild a thumbnail tile's viewport frame only when its current-page ring or viewport mark changes, instead of rebuilding every tile on every scroll tick.
Path-cache hits skip the recency relink and the record key: PdfBudgetedCache.lookup counts a hit without touching recency, for admission-only caches.
Paint unembedded-font text faster on a cold page. The run-layout key is typed, digits and capitals in a kern-free substitute face are composed from cached glyphs instead of shaped, and word pieces are shared across runs (label-dense CAD pages paint cold in 28 ms instead of 155 ms; text-cache memory is lower). Composition matches shaping except for a rare subpixel rounding flip of one glyph.
Rasterize a retained page's first base raster from its already-built picture through a layer (PdfPageRenderer.rasterizeViaLayer) instead of replaying the transcript a second time on the UI isolate.
Follow pdf_graphics' codec v11 through the seam: a Type3 glyph cell shared by every stamp is restored, compacted and image-walked once (PdfPageRenderer.collectImageRequests(distinctCells: true) for the decode callers), so a bitmap-font page's picture builds in 37 ms instead of 456 ms.

5.0.024 Sept 2026Breaking

Roll the Unreleased sections over with Breaking changes subsections and migration notes, and write the ones the batch never got: AF* scripts, comb/Max…

Bump the app to 5.0.0+39 and the lockstep package suite to 5.0.0
(dart_pdf_cli 0.2.0, dart_pdf_editor_flutter_gpu 0.4.0, dart_pdf_printing
0.2.0 - their dependency majors moved under types they expose). This is a
major release because public behaviour and API changed incompatibly since
4.5.0:

dart_pdf_editor: PdfFormFieldKind gained radioGroup/comboBox/listBox/
signature and PdfBundledSubstitute gained carlito (exhaustive switches
break); setFormFieldText now runs keystroke/validate scripts, returns
false for refused input and stores the normalised value; shells without
a viewMode: own a per-window PdfViewModeController, so hosts that drove
the mode through preferences must pass one; DartPdfEditorLocalizations
gained abstract getters.
pdf_document: setTextValue truncates to /MaxLen and recalculates AF
calculated fields; every fill removes /XFA and /NeedsRendering; list
boxes draw every row; validate() untrusts a chain the /DSS says is
revoked; PdfTrustStore.addCertificate/addDer gained {source}.
pdf_cos: decryptObjectGraph leaves a signature's /Contents as-is; OCSP
delegated responders must be CA-issued with id-kp-OCSPSigning.

Roll the Unreleased sections over with Breaking changes subsections and
migration notes, and write the ones the batch never got: AF* scripts,
comb/MaxLen/password fields, XFA detection, encrypted signing and tab
order in pdf_document; openAppended in pdf_cos; the /ImageMask box filter,
justified-text reflow spaces and multi-select field context in
pdf_graphics; the form-layer, secret-store, Tab navigation and
thumbnail drag-out work in dart_pdf_editor; multi-select values in the
CLI; the print range and copies fixes in dart_pdf_printing; the new
fixtures. Dev dependency ranges on workspace packages now admit <6.0.0 so
the workspace resolves and publishing still accepts the hosted 4.5.0.

Store notes cover form calculations and checks, Tab and multi-select,
password fields kept out of the file, field creation, signing encrypted
PDFs, revocation checks with EU/Adobe trust lists, and Calibri via
Carlito, across 20 iOS locales, 21 Play changelogs, and both Linux
metainfo copies. The forms guide now says it applies to 5.0.0.

Co-Authored-By: Claude Opus 5.5 noreply@anthropic.com

Open source →

Additional notes

Breaking changes

PdfFormFieldKind gained radioGroup, comboBox, listBox and signature. Exhaustive switches over it need the new cases (or a default).
PdfBundledSubstitute gained carlito. Exhaustive switches over it need the new case.
PdfEditingController.setFormFieldText now treats the value as user entry (PdfEditor.enterTextValue): a field's recognised keystroke and validate scripts (AFNumber_Keystroke, AFDate_KeystrokeEx, AFRange_Validate, ...) run first, so it returns false for a refused value and stores the normalised one. Through setTextValue it also truncates to /MaxLen, recalculates calculated fields and drops stale /XFA. Call checkFormFieldText first to learn why a value would be refused. With a formSecretStore, a password field's value goes to the store instead of /V.
PdfEditorView and PdfReader given no viewMode: now own a PdfViewModeController of their own, seeded from the preferences once they load. The shell no longer follows later writes to preferences.viewMode / showReflowView / showThumbnailView, so a host that switched the shell's mode by writing those must create a PdfViewModeController and pass it as viewMode:, then drive that.
DartPdfEditorLocalizations gained abstract getters for the new form, XFA and signature-revocation strings (formXfaUnsupportedNotice, sidebarSignatureRevokedStatus, menuConvertToRadioGroup, formOptionsTitle, ...). A custom subclass must implement them; extending a bundled locale class picks them up.

Changes

PdfEditingController.signatureTrustAction lets a host offer a one-click way to trust an unknown signer, for example by loading a trust list. The signature panel now also names the trust list a root came from.
The signature panel checks revocation when the controller has a revocationClient. It shows a Revoked status, whether revocation was confirmed online or from embedded data or could not be checked, and it names self-signed signers and untrusted issuers.
Multi-select list boxes take several values (#933): PdfEditingController.setFormChoiceValues and pickFormChoiceOption (which toggles an option on a multi-select box), and the form option menus show checkable items for those fields, each pick toggling one option.
The form tool creates radio groups, combo boxes, list boxes and empty signature fields (#934): PdfFormFieldKind gains radioGroup, comboBox, listBox and signature, and the new-field and field-type menus list them. A selected radio group offers "Add button to group" (PdfEditingController.addFormRadioButton), a selected choice field "Edit options…" (showPdfFormOptionsDialog / PdfFormOptionsEditor, applied through setFormFieldOptions), and every field converts to the new kinds.
Draw cold annotation appearances against a frame budget instead of one per frame. With an editing or form controller attached, marks are drawn by the page's annotation overlay on the platform thread, and each render-scheduler grant used to draw exactly one appearance - so a drawing carrying 1,000 stamps filled in over eight seconds at 120 Hz (sixteen at 60 Hz) while the thread sat idle for most of every frame. A grant now keeps drawing until PdfPageRenderScheduler.appearanceFrameBudget (4 ms) is spent, publishing once per batch rather than once per mark. One appearance still draws per grant however long it takes, so heavy appearances keep the old pacing.
Add PdfViewerController.isAnnotationAppearanceBusy and annotationAppearanceProgress, notified through pageRenderActivity. The overlay finishes after the page raster, so isPageRenderBusy and isPageRasterReady read done while marks are still landing; these report the overlay's own outstanding work on the pages it is live for, from the moment a pass is queued until the frame that paints its last appearance.
Draw unembedded Calibri in Carlito instead of TeX Gyre Heros. pdfBundledSubstituteFor had no Calibri entry, so it fell through to the default sans, and Helvetica's advances are much wider than Calibri's - with every character pinned to the PDF's own pen offset by exactSubstitutedGlyphPlacement, the surplus had nowhere to go and the glyphs crowded into each other - which is what an Office-printed cover page looked like. Carlito matches Calibri's advances exactly, in all four styles. The faces come from the optional dart_pdf_editor_assets package; without it, the fallback chain now names a host Carlito or Calibri before anything else. PdfBundledSubstitute gained assetSuffix (Carlito is TrueType where the TeX Gyre faces are CFF) and fontFaceFormat, which the web worker's FontFace now names instead of assuming opentype.
Give each window its own view mode. PdfEditingPreferences is one object per process, so reading the live mode off it meant switching to the page grid (or reflow) in one window switched every other window with it. The live mode now belongs to the window: PdfViewModeController holds it, PdfEditorView and PdfReader take it as viewMode:, and a multi-window host creates one per window and hands it to every shell that window builds - so all of that window's tabs share a mode and no other window follows. PdfEditingPreferences.viewMode still persists each choice, now as the mode the NEXT window starts in and the one the next launch restores. A shell given no controller owns one seeded from - and written back to - the preferences, so a single-window host is unchanged. pdfShellViewModeControls takes viewMode: in place of preferences:, and PdfShellViewOptionsButton takes an optional viewMode: that falls back to its preferences.
Hold Shift while dragging a line, polyline or polygon vertex handle to straighten the segment being reshaped onto the nearest 45° axis, the same constraint the tools already apply while drawing. A vertex with a neighbour on each side (every vertex of a polygon, whose ends wrap) takes whichever of its two segments the pointer was already closest to lining up. Callout leader handles keep their free aim.
Run the recognised AF* form scripts while filling (#930): a keystroke script filters typing (a number field won't take letters), Enter on a refused value keeps the inline editor open with the reason under the field, leaving a field with a refused value keeps its old value and shows a toast, and the afterimage shows the formatted value. PdfEditingController.checkFormFieldText checks a value without editing.
Honour comb fields, /MaxLen and password masking in the inline editors (#931): they cap input at /MaxLen and obscure password fields, their afterimages stay masked, and the Edit value prompts no longer prefill a password. Add PdfFormSecretStore with InMemoryFormSecretStore and SecureFormSecretStore (flutter_secure_storage), keyed by the document's permanent id and the field name. PdfEditingController(formSecretStore:) routes password fills there instead of the file, restores stored values on open without dirtying the document, keeps the store in step with undo and redo, and forgetFormSecrets() clears a document's values.
Show a one-time, closable notice when a form is dynamic XFA instead of silently showing no fields (#929). Hybrid forms fill normally.
Tab and Shift+Tab move between form fields (#932), across pages and wrapping at the ends, in each page's /Tabs order. Text fields open their inline editor; check boxes, radio buttons and choice fields get a focus ring (Space toggles, a choice field opens its menu). Multi-line fields move on Tab instead of typing a tab. PdfViewerController.revealRect scrolls a rect into view without zooming.
A thumbnail reorder drag carried out of the strip's window is reported through PdfThumbnailDropController.onPageDragOutside / onPageDropOutside (PdfPageDragOut) instead of reordering the strip, so a host can move the pages into another window. PdfEditingController.removePages removes several pages in one edit. The thumbnail strip and page grid bind undo/redo themselves, so a paste made there can be undone while the panel keeps focus, and undo/redo of a structural edit clears the stale page selection. A held drop is cancelled when an edit changes the document under it.

4.5.016 Sept 2026

Bump the app to 4.5.0+38 and the lockstep package suite to 4.5.0 (dart_pdf_cli 0.1.8, dart_pdf_editor_flutter_gpu 0.3.4, dart_pdf_printing 0.1.1). Not

Bump the app to 4.5.0+38 and the lockstep package suite to 4.5.0
(dart_pdf_cli 0.1.8, dart_pdf_editor_flutter_gpu 0.3.4, dart_pdf_printing
0.1.1). Nothing public was removed or changed incompatibly since 4.4.0 -
showPdfShellViewOptionsSheet lost its reflow/pageGrid parameters, but it is
not exported - so this is a minor release.

Roll the Unreleased sections over and write the ones the 4.4.0..HEAD batch
never got: WinAnsi widths and the DocMDP P=1 signing refusal in pdf_document,
CJK selection metrics in pdf_graphics, selection continuity, the stroked-text
floor, stem darkening and the page-grid State fix in dart_pdf_editor.

Store notes cover What's new, the Linux antialiasing fix, exported pages
opening in a tab, the view-mode picker, metric-compatible standard-14
substitutes, and selection and stroked-text fixes, across 20 iOS locales,
21 Play changelogs, and both Linux metainfo copies.

Co-Authored-By: Claude Opus 5 noreply@anthropic.com

Open source →

Additional notes

Group the view-options menu around what its rows actually do. Reflow text and the page grid each REPLACE the page viewer, but they were drawn as two independent checkmarks among the display overlays, and each silently cleared the other - so leaving a mode meant unticking the one you ticked, and plain pages existed only as the absence of both. They are now one SegmentedButton at the top of the menu, with Pages as a real destination, over a PdfEditingPreferences.viewMode (PdfViewMode) that owns the exclusivity the callers kept re-implementing - including the command palette, which toggled the two bools independently and could show both at once. On compact layouts the modes move up into the Controls sheet's View section, one tap from the document: Reflow already had a tile there, and the page grid needed Controls -> Settings -> scroll -> tick. The Settings sheet keeps only settings, and showPdfShellViewOptionsSheet no longer takes reflow / pageGrid.
Draw unembedded standard-14 text in the metric-compatible TeX Gyre faces bundled by dart_pdf_editor_assets - Heros for Helvetica/Arial, Termes for Times, Cursor for Courier - ahead of any host font. Substituting a face with different advances opened white space inside words, because each character is placed at the PDF's own pen offset: DejaVu Sans, the previous fallback, drew J at 295/1000 em where Helvetica's table reserves 500, leaving ~2.7pt of air after every capital J at 12pt. Without the assets package the renderer now names the host's metric equivalents (Arial, Liberation Sans, Nimbus Sans and their serif/mono counterparts) before falling back further.
Load only the substitute weights and slants a page actually shows in the canvas2d web worker, and none for an invisible OCR layer.
Export the substitution policy (PdfBundledSubstitute, pdfBundledSubstituteFor) so a host can resolve the same faces the renderer does.
Keep a text selection that crosses separately drawn runs continuous: selection rects and the quads addMarkup saves are normalized to one box per visual line, joining fragments only across a gap of up to 1.5 line heights so a column gutter keeps its two boxes.
Hit-test text with each run's own ascent and descent, so CJK lines select over the whole glyph height.
Floor stroked text (rendering modes 1/2/5/6) at one device pixel on both text paths. A 0 w width no longer becomes a hundredth of an em in the substituted-font painter, which left stroked text nearly invisible.
Add an off-by-default glyph stem darkening flag, CanvasPdfDevice.glyphStemDarkening, which darkens thin stems of small text without widening them.
Keep the viewer's State when the editing toolbar comes and goes, so double-clicking a page in the page grid lands on that page instead of rewinding to page 1.
Opt the example's Linux runner out of Impeller (DARTPDF_IMPELLER=1 turns it back on): on desktop OpenGL Impeller fills PDF glyph paths without antialiasing.

Open source →

4.4.09 Sept 2026

Storeflight and release-app.yml both created the release for an app-v tag. Storeflight pushes that tag, so its own delivery and the workflow the tag s

Storeflight and release-app.yml both created the release for an app-v tag.
Storeflight pushes that tag, so its own delivery and the workflow the tag
starts were racing to own the same release, and would have attached two sets
of assets for the same platforms under different names.

Storeflight wins, with one exception it cannot cover. A release artifact
there is a single path per platform, and Linux ships two user-facing files -
the portable tarball and the AppImage. Dropping either is not an option:
publish-flatpak.yml downloads dartpdf-linux-x64.tar.gz from the release by
name and verifies its digest, so the Flatpak publisher fails a step later
without it.

So release-app.yml stops creating a release and contributes only the two
Linux assets. It waits for Storeflight's release rather than creating one,
because publishing the tag is what starts it and it can arrive first;
creating one there would be the same race with the roles reversed. It also
asserts the tarball is present under the name the Flatpak publisher looks
for, so a rename fails here rather than ten minutes downstream. The job now
needs only the Linux build, since waiting on the other six delayed that input
for no benefit.

publish-flatpak.yml waits for the asset for the same reason: two workflows
started by one tag have no ordering between them, and an asset still
uploading is not a missing build.

Co-Authored-By: Claude Opus 5 noreply@anthropic.com
Claude-Session: https://claude.ai/code/session_01RNNTEpKG3vAEwMYMvghdvx

Open source →

Additional notes

Reach at least 10000% actual size independently of viewport width, with 3000%, 5000% and 10000% shell presets. Explicit host zoom caps keep their previous behaviour.
Treat balanced compositing groups as indivisible indexed ranges, so a page carrying transparency groups or soft masks no longer falls back to replaying every command for a small zoomed viewport. Dense pages start using the spatial grid at 32,768 commands, warmed through the render worker.
Cache native path geometry in the retained scene across zoom and detail replays, under a 32 MiB geometry budget and a 65,536-entry cap that participate in memory-pressure eviction.
Reuse the render worker's recorded text for selection and search, retaining at most 32 pages and an estimated 16 MiB per worker. Warm a focused page's text after 500 ms of viewport idle; motion cancels the pending warm.
Reserve one-tile-per-paint admission for pages above 250,000 commands, so an ordinary indexed page can still fill the eight-tile batch.

Open source →

4.3.06 Sept 2026

Add 4.3.0 Linux release metadata

Open source →

Additional notes

Add PdfKeyboardAvailability so hosts can hide shortcut hints and shortcut settings when a physical keyboard is unavailable. Shortcut bindings stay active.
Group mobile Controls into View and Panels sections in both shells, keeping Settings and Reflow with view controls and allowing the sheet to scroll.
Add PdfDialogSubmit to mark a showPdfDialog primary button for Enter and numpad Enter submission. Wire the stock editing dialogs to it, preserving validation, IME composition, Shift+Enter, and keyboard-focused buttons.
Expose snapshot PDF bytes, pasteSnapshotBytes, and systemPdfPasteProvider on the viewer and editor shell. External PDFs paste as editable vector stamps through keyboard and context-menu Paste, with image/text fallback.
Add complete Australian and UK English locales for editor controls, including colour, centre and organisation, while the base English locale uses US spelling. Localise the smart alignment guide hint.
Add the Erase content tool (Shift+E) to the toolbar and shared tool catalogue, with a compact "Erase" label and full instructions in its tooltip. Drag a rectangle or click polygon vertices and double-click to finish; crossing graphics are clipped at the boundary and text is sliced by glyph. Deletion is undoable and leaves annotations unchanged.
Add PdfCompressionTask in compression_worker.dart: cancellable PDF optimisation in native isolates and dedicated browser workers, with exact savings reports and no main-thread fallback when a worker fails.
Expose the toolbar's tool catalogue: pdfToolGroups, pdfToolCatalog(), PdfToolGroup/PdfToolEntry, and pdfEditToolLabel/pdfEditToolTooltip/ pdfMarkupLabel/pdfMarkupTooltip. The dock now reads the same list a host can enumerate, so a command palette or shortcut sheet stays in step with the tools the toolbar actually shows.
Add PdfEditingController.exportPageRanges, showPdfSplitDialog, and the onSplitPages host callback on the editor shell and both thumbnail layouts. The Split PDF action accepts comma-separated ranges and generates one PDF per range in a single batch. The example opens extracted results in new tabs.
Preserve sparse-buffer ranges across native and web render workers, pooled and urgent workers, and overprint retries, including edit/undo/redo updates.

Open source →

4.2.05 Sept 2026

Release dart_pdf_editor 4.2.0

Open source →

Additional notes

Add textMenuBuilder, the text-selection counterpart to annotationMenuBuilder: hosts append their own entries to the right-click text menu (below a divider, after the stock markup/Copy/Select all) on PdfViewer, PdfEditorView, and PdfReader, in reader mode as well as with an editing session. Also expose PdfViewerController.selectAllTextOn so a host that takes the whole menu over with onContextMenuRequested can rebuild Select all.
Sharpen pages directionally during sustained slow scrolling with a bounded accelerated look-ahead, and warm pages ahead of the scroll direction, while preserving fast-scroll preemption and strict worker, raster-cache, and Canvas-fallback safeguards.
Use the optional Flutter GPU route to accelerate full-page raster warming when the backend reports support for it.
Add annotation alignment guides and page rulers for precise placement.
Anchor Ctrl/Cmd+wheel zoom on the pointer across the fit-width seam, and carry the focal point through the zoom settle so the web's pinch-reported Ctrl+wheel also holds the point under the cursor. PdfViewerController.setZoom now zooms about the viewport centre the reader is looking at.
Fix selection chrome, resize previews, and inline text editing on pages with a display /Rotate: the resting rotation now comes from PdfAnnotation.appearanceRotation in page space rather than from a view-space quad, so a square annotation on a /Rotate 90 page is no longer treated as turned a quarter turn (which transposed committed rects). Resize cursors now follow the handle's on-screen direction.
Fix text-markup hit testing for disjoint highlight quads, so multi-line markup is selected by its QuadPoints rather than its bounding box.
Avoid blurry text under multi-line highlights by rendering wrapped highlight appearances as tightly clipped per-region pictures instead of one large Multiply compositing surface.
Allow panning between text lines instead of starting a text selection.
Defer editing notifications raised during viewer frame updates.
Align dependency constraints with the dart-pdf 4.2.0 package suite.

Open source →

4.1.02 Sept 2026

Release dart_pdf_editor 4.1.0

Open source →

Additional notes

Add a persistent named handwritten-signature library with previews, selection, rename/redraw/delete management, and automatic migration from the previous single saved signature.
Add a dockable, searchable reusable-annotation library backed by detached PdfAnnotationSnapshots, with named groups, context-menu capture, cross-document placement, cursor-following drop previews, repeat Paste, and a direct path to the custom-stamp collection.
Add independently configurable horizontal and vertical cursor guide lines, an optional visible page-space grid, and persisted grid snapping for annotation placement, movement, resizing, and vertices (hold Alt to bypass snapping temporarily). These controls live in the editor Settings popup.
Enable the example's visible digital-signature tool with a secure, persisted signing identity on macOS and web, and hide that tool from the stock PdfEditorView when a host has not supplied a signing handler.
Let users select a signed box and remove its digital signature from the contextual toolbar on desktop or mobile, with confirmation and undo.
Refresh signed pages immediately after placement so the visible signature box appears as soon as signing completes.
Let the content tool reposition selected page content and drag it across pages with destination-aware previews and undo.
Add the eyedropper to the colour dialog and keep it responsive across every page in a document.
Improve retained rendering and the optional GPU route for complex blends, transparency groups, images, text, and large engineering drawings.
Fix sparse progressive loading, digital-signature key import, and selection refresh across supported platforms.

Open source →

4.0.025 Aug 2026

Release dart_pdf_editor 4.0.0

Open source →

Additional notes

Add an optional asynchronous tile-backend retry hook and exact retained-scene re-recording, while preserving the existing Canvas fallback when a retry is unavailable, fails, or remains inexact.
Breaking: classes that implements PdfTileRasterBackend must add supportsWarmUp, supportsSessionWarmUp, and warmUp(). Extending the base class keeps the default no-op implementations.
Fit a free-text font to its existing box from the selection toolbar, tighten Alt+Z box autosizing to the font's real vertical metrics, and add selected annotation flattening to the right-click menu.
Add compact docked editing controls and horizontal thumbnail layouts, with steadier panel sizing, scrolling, selection, and recent-document previews.
Collect worker-decoded images inside retained tiling cells, so bitmap Type 3 glyphs keep their image pixels when a command buffer is rebuilt on the UI isolate.
Let optional tile backends prepare view-scoped resources and live-page scene sessions after first useful pixels and a 750 ms quiet window. Foreground rendering cancels and restarts the delay, keeping first paint and immediate navigation uncontended while avoiding cold setup during deep zoom.
Carry exact output-intent colour, overprint, transparency, soft-mask, and high-bit-depth image rendering through Canvas, retained, worker, and tile paths.

Open source →

3.8.023 Aug 2026

Release dart_pdf_editor 3.8.0

Open source →

Additional notes

Let annotations extend beyond the page edge while remaining selectable, movable, resizable, and editable.
Add configurable signature ink colour and thickness, and allow the shared properties UI to restyle compatible mixed annotation selections.
Add print-preview support, a searchable recent-files browser surface, and PdfViewerFeatures.showSelectionChip for host control of the touch selection chip.
Keep page and annotation caches stable across incremental saves, page reordering, undo, and redo through revision-aware invalidation.
Improve rendering throughput and scroll stability on large image-heavy and CAD documents with viewport culling, lighter retained scenes, better worker scheduling, and more efficient deep-zoom tiles.
Fix popup placement in nested overlays, free-text caret alignment at deep zoom, browser JPEG decoding, and a release-mode annotation-picture disposal crash.

Open source →

3.7.121 Aug 2026

Fix a release-mode crash when an annotated viewer unmounts while a cached annotation picture is still being disposed.

Fix a release-mode crash when an annotated viewer unmounts while a cached annotation picture is still being disposed.

Open source →

3.7.019 Aug 2026

Anchor thumbnail context menus to the correct position when the editor is hosted inside an offset nested navigator.

Anchor thumbnail context menus to the correct position when the editor is hosted inside an offset nested navigator.
Anchor viewer text, annotation, and form popups in that same nested-navigator configuration instead of shifting them by the overlay origin.
Render ordinary pages through a scroll instead of waiting it out. PdfPageRenderScheduler gains a motion lane: a request declares a PdfRenderMotionClass, evaluated at grant time rather than baked in, so a worker-backed page renders during any motion, a small page without a worker renders in the scroll-quiet window, and anything heavier keeps the old hold. A page on screen with nothing to paint now asks for its render on every rebuild (guarded by isQueued), which is what was missing for a page the reader scrolled onto.
Weigh an image by its declared size rather than its existence: PdfPageView.motionSafeMaxImagePixels and PdfPageRenderer.imageDrawPixels admit the letterhead mark that every page of a corporate report carries, which the first cut of the gate refused outright.
Price retained scenes honestly. PdfPagePreviewCache.priceRetainedScene floors an entry at the raster it stands in for - the engine's own picture estimate under-reports a text page by ~18x - and the budget becomes platform-aware (pdfDefaultRetainedSceneBytes), so the entry cap goes back to being a backstop. A cached scene is now adopted when it is sharp at the current zoom, not only when it carries a fresh render's decode headroom.
Add find and replace to the search panel. PdfSearchResultsPanel(editing:) reveals a replacement field behind a disclosure in the options row, with Replace and Replace all (one undo step); a null editing leaves it a pure find panel. Backed by replaceMatchText and replaceTextOnPages on the editing controller, and persisted through PdfEditingPreferences.searchReplaceExpanded.
Fix the element strip's "Replace text" rewriting every matching run on the page: both element-strip entry points now use the targeted replaceElementText, as the selection menu already did.
Report the text of a remapped or subsetted simple font correctly in the content tool, through pdf_document's new SimpleFont.
Yield a frame between thumbnail tiles and re-read the busy gate, so the strip can no longer run 400-500 ms of tile work ahead of the page the reader landed on.
Say when the render worker fails to start. A failed isolate spawn was swallowed, leaving every page to interpret on the UI thread for the rest of the document with nothing in any log; it now reaches PdfPerfLog and prints a debug warning, and the interpret line distinguishes recorded(no-worker) from recorded(declined).
Translate the new search and replace strings into all 19 non-English locales.

Open source →

3.6.015 Aug 2026

Add showPdfDialog, a view-local Material dialog helper for hosts using Flutter's desktop multi-window support.

Add showPdfDialog, a view-local Material dialog helper for hosts using Flutter's desktop multi-window support.
Keep the annotation sidebar's selected item visible, make page and annotation navigation more reliable across edits, and preserve FreeText opacity in live editing and raster output.
Preserve substituted glyph advances on the worker-owned web Canvas2D surface. Unembedded Century Gothic and Avant Garde use the metric-compatible TeX Gyre Adventor fallback supplied by the optional assets package.
Preserve Bluebeam FreeText alignment, spacing, and caret placement while editing annotations that describe their style through CSS metadata.

Open source →

3.5.114 Aug 2026

Keep image soft-mask compositing correct on Impeller by applying the mask at the layer boundary, preventing masked images from rendering as black bloc

Keep image soft-mask compositing correct on Impeller by applying the mask at the layer boundary, preventing masked images from rendering as black blocks.

Open source →

3.5.013 Aug 2026

Sharpen deep-zoom pages visible-first: the foreground render now covers the exact viewport. Once that sharp frame paints, tile-capable pages grow boun

Sharpen deep-zoom pages visible-first: the foreground render now covers the exact viewport. Once that sharp frame paints, tile-capable pages grow bounded pan-ahead underneath it; fallback pages avoid a second unpreemptible raster. Translation settles cannot abandon an in-flight exact recovery, and tile admission is bounded across frames so unrelated repaints cannot build a long GPU queue. Foreground paint telemetry remains distinct, and every retained detail allocation rebalances the live-raster budget, preventing visible quality and memory from stepping backwards.
Promote fast-scroll page previews through a configurable 200 -> 400 -> 800 px LoD ladder before the final display raster. Intermediate levels warm only around the viewport, share a 32 MiB byte-budgeted LRU, and are generated from completed page rasters by serial image blits when possible; live pages never downgrade when a cached level is evicted. Expose LoD occupancy and evictions through PdfViewerController.pagePreviewLodStats and perf logs.
Let a tile raster session opt out of adjacent-tile slab batching and cap new work admitted by each paint, while preserving Canvas batching and existing third-party session compatibility. Expose the exact visible-tile budget decision in diagnostics so single-patch fallbacks are explainable.
Keep off-screen neighbour pages at fit-resolution base rasters during deep zoom, promoting them only when they enter the viewport, so navigation no longer allocates high-zoom full-page rasters that are immediately replaced. Cache-restored fit rasters now trigger that same promotion instead of remaining enlarged after entering an already-zoomed viewport.
Require 750 ms of continuous viewer idle time before whole-document thumbnail warming starts or resumes, and restart that quiet window when navigation changes focus.
Let optional tile backends expose their latest session rejection reason and include requested backend, actual route, reason, and command count in perf logs.
Add an optional persistent tier for 512 px LoD tiles. Disk reads race live rendering, writes happen after display admission, cache keys include the complete page visual identity, and the existing byte-budgeted memory LRU and coarse-tile fallback remain authoritative. Export the retained-scene bounds and content-stable image-key helpers used by optional raster backends.
Let PdfComparisonView receive the same optional tile raster backend as the reader, editor, and viewer, so hosts can switch every mounted view together.
Stop treating a page that shares the screen with the current one as an off-screen prefetch neighbour: PdfPageView.onScreen now gates the reduced-resolution image decode and the live-raster reclaim, so pages above and below no longer soften and blank as they cross the viewport edge on large-format scans (#657). PdfLiveRasterHolder implementations must add liveRasterOnScreen.

Open source →

3.4.09 Aug 2026

Add a reproducible Chromium/PDFium competitive harness and reduce deep-zoom memory pressure by reserving large rasters for visible-region detail, reus

Add a reproducible Chromium/PDFium competitive harness and reduce deep-zoom memory pressure by reserving large rasters for visible-region detail, reusing fit rasters as zoom bases, immediately settling discrete zooms, and prioritising the focused page ahead of speculative neighbours. On web, proactive off-screen preview warming now waits for a one-second idle window so CanvasKit readbacks cannot extend the visible navigation response tail; fast-scroll vector previews remain immediate. Small resource-simple pages may take one startup-only local first paint while the worker boots, and a completed web raster no longer performs an immediate duplicate preview readback. Below-fit layout zooms now defer mounted neighbour refreshes just like transform zooms, so only the focused page sharpens on the interaction's critical path. The harness can also build SkWasm and validate its offscreen canvas through symmetric full-compositor screenshot polling; custom build output paths are resolved before changing directories so an A/B cannot silently serve a stale bundle, and per-action Flutter frame timings make page/zoom presentation tails directly attributable in the result artifact. Competitive records now pin Chrome's GPU/Skia backend and diagnostics-only no-capture runs cannot be used as parity gates. A prepared or revisited exact raster is adopted synchronously in the focused page's first build, avoiding a placeholder frame without blocking navigation to create it. A default-off worker-owned Canvas2D path now covers ordinary path/text pages and correctness-gated decoded images while declining unsupported command profiles to the established renderer. Browser-native grayscale frames avoid a Dart RGBA upload for common scans, and deep zoom overlays a viewport-sized region on a retained 2× base instead of committing a full 3× page canvas. A real-Chrome pixel gate checks representative pages/zooms for channel error, foreground recall/precision, and foreground-coverage bounds before benchmark results are accepted. The competitive runner now calibrates full-screenshot pixel sampling separately from JPEG response completion, excludes its pre-navigation baseline capture from cold-open time, preserves page-side readiness timestamps across delayed CDP polls, and emits wheel events at a fixed hardware cadence without serial acknowledgement throttling. This removes capture/driver floors from page, zoom, and scroll comparisons while retaining screenshot hashes as the common visible-output boundary. Cold-open diagnostics now retain both full app-shell and first-PDF-request clocks, so pre-Flutter startup is separated from document/render work without removing application startup from the parity gate. The benchmark bootstrap can now fetch once and paint page zero in the render worker before Flutter/SkWasm starts, then hold that canvas through an exact hydrated-surface handoff. Focused worker surfaces render directly at requested zoom-out sizes for thin-line fidelity, use a 120 ms interaction settle, and retain an exact-size ImageBitmap LRU capped at 8 MP / 32 MiB per live surface. Five-run gates for the plan, scan, text, and ultra-dense diagram scenarios now meet every configured PDFium p50/p95 interaction and RSS budget while the path remains experimental and default-off.
Extend the competitive gate with a deterministic 138-page CAD journey that measures normalized scrollbar scrubs, same-process warm reopen, continuous peak RSS, and settled memory, plus a matched HTTP Range scenario that records document first paint, complete background handoff, bytes, requests, and RSS. Both five-sample gates meet their PDFium budgets. Progressive shells can stop their sparse page-tree walk after the requested first-paint pages, render that preview locally, then hand the complete document to the worker renderer; immutable web revisions share one identity-keyed SharedArrayBuffer across sibling workers instead of copying the full file per worker. A weekly Chromium/PDFium workflow and tool/perf.sh pdfium-gate run all six acceptance scenarios with checked-in budgets.
Add PdfAnnotationSnapshotClipboard, shared by default across editing controllers, so annotations copied in one document can be pasted into another open document (#653).
Add PdfThumbnailDropController and thumbnail-panel drop targets, enabling hosts to insert externally dropped PDFs at an exact page position (#654).
Save eligible placed stamps back into the custom stamp collection while preserving unresolved template fields, type, tags, and colour (#651).
Add optional persistent scrollbar chapter markers and surface the selected annotation's colour in editing style controls (#643, #652).
Align selection, search, and substituted-font painting to the PDF's exact per-character advances for proportional fonts (#647, #648, #649, #655).
Keep the touch text-selection menu under the viewer zoom transform and hide page-colour editing from reader-only shells (#650, #656).

Open source →

3.3.12 Aug 2026

Fix annotation property edits duplicating an annotation in PDFs that store the page annotation array indirectly (#638).

Fix annotation property edits duplicating an annotation in PDFs that store the page annotation array indirectly (#638).
Keep cloud and polygon pattern spacing at the configured scale in the live drag preview (#639).
Preserve embedded fonts when changing FreeText colour (#641).
Improve multi-page thumbnail reordering with group drag feedback, insertion markers, and reliable movement of the selected page set (#642).

Open source →

3.3.02 Aug 2026

Add PdfPageRasterWarmPolicy (disabled by default, plus nearby(window:) and document()): the viewer can now spend genuine idle time baking the exact, d

Add PdfPageRasterWarmPolicy (disabled by default, plus nearby(window:) and document()): the viewer can now spend genuine idle time baking the exact, display-sized raster of pages the user has not visited, so arriving on one paints immediately instead of interpreting and reading back first. On a 16-page vector plan set in real Chrome that is ~2100 ms → ~107 ms; on a 12-page A3 scan, ~1720 ms → ~49 ms, for 60–85 MB of retained rasters. Warming stands down for any scroll, zoom, edit, armed tool, deep zoom, or queued page render, paces itself to one page at a time, prefers the render worker, and declines a page whose raster PdfPageRasterCachePolicy could not admit before doing any work. Available on PdfViewer, PdfReader, PdfEditorView, and PdfComparisonView; diagnostics through PdfViewerController.pageRasterWarmStats.
The exact-raster cache is now keyed by (page, raster signature) — page index, physical size, paper colour, annotation visibility, and rotation — rather than by page index alone, so warming or visiting one size no longer overwrites a useful raster at another. Up to two geometries per page are retained, bounded by the same PdfPageRasterCachePolicy byte budget; rasters belonging to a superseded document revision are dropped on sight. This supersedes 3.2.0's "discard unusable visited-page cache entries": a lookup at another geometry is now a plain miss that leaves the raster it did not ask for alone, because that raster is exactly what a zoom back to fit — or the idle warm — needs.
Re-offer pages to the idle warm only when the exact-raster budget actually grows. An adaptive host re-prices that budget every few seconds, usually downward; clearing the attempt set on every change re-attempted and re-declined every page on every tick.
Add an optional persistent full-resolution raster tier through PdfRasterCache(fullRasters:). Exact page rasters can now survive process restarts, use an independent size-bounded LRU, validate a versioned payload, and fall back safely on cache corruption or I/O failure. New PdfRasterCacheStats and PdfDiskCache counters expose hits, misses, stores, rejections, evictions, byte totals, and codec latency (#615).
Re-decode image content at the requested deep-zoom tile resolution, so scans and image-backed drawings become sharp instead of magnifying the capped full-page decode. Tiles wait for the region-scoped high-resolution scene and fall back cleanly if the worker declines it (#634).
Honour the platform touch slop in the viewer's custom recognizers, restoring one-finger panning on mobile and removing the dead zone before a zoomed drag begins (#632).
Add rectangle corner-radius controls to PdfAnnotationPropertiesPanel, keep newly inserted PDF pages in view, and expose PdfViewer.trailingPadding so floating editor chrome can reserve clearance below the document (#622, #631, #637).

Open source →

3.2.029 Jul 2026

Add PdfPageRasterCachePolicy to configure the in-memory byte budget and per-page limit for exact rasters of previously visited pages. The existing 32

Add PdfPageRasterCachePolicy to configure the in-memory byte budget and per-page limit for exact rasters of previously visited pages. The existing 32 MiB total / 16 MiB per-page defaults are unchanged; PdfViewer, PdfReader, and PdfEditorView can now opt into a much larger desktop working set. Retained full-page rasters participate in process-wide cache accounting and memory-pressure cleanup, so multiple viewers share the coordinated host ceiling. Performance traces now report exact-raster policy, hit, miss, admission rejection, store, and budget-eviction events, while cache diagnostics expose lifetime hit/miss/eviction counters. Dense deep-zoom scenes now bootstrap their worker-built spatial index correctly instead of remaining on repeated full-viewport detail rasters indefinitely; the capped base remains visible during that warm-up rather than launching an obsolete fallback record, and traces split tile replay/raster/slicing costs.
Stop redundant full-page and detail rasters after unchanged-scale settles, discard unusable visited-page cache entries, and avoid making memory-pressure cache caps persistent when caches hold little of the process RSS. Trace output now distinguishes progressive phases and reports raster concurrency and render-hold state accurately (#628).
Add host-owned context menus. PdfViewer, PdfReader, and PdfEditorView accept onContextMenuRequested; with the stock menu disabled, a PdfContextMenuRequest reports the resolved text, annotation, locked annotation, form widget, or empty-page paste target for mouse and touch gestures (#538).
Hit-test and draw selection chrome for Highlight, Underline, StrikeOut, and Squiggly annotations from their /QuadPoints quads instead of the enclosing /Rect, so gaps between marked lines no longer steal clicks or show as selected (#627).
Keep Ctrl/Cmd-wheel zoom available after a Shift-constrained drawing gesture has latched its axis (#624).

Open source →

3.1.126 Jul 2026

Fix intermittent frame drops while scrolling large or visually dense documents. Page recording and raster work now keep the frame scheduler awake betw

Fix intermittent frame drops while scrolling large or visually dense documents. Page recording and raster work now keep the frame scheduler awake between cooperative slices, visible thumbnails yield to page renders, and repeated wheel events retain the low-resolution preview cache until the gesture has genuinely settled.
Bound speculative thumbnail warming on web and add command budgets to vector thumbnail previews, keeping long documents responsive without blanking pages during fast scrolling.

Open source →

3.1.026 Jul 2026

Overprint (§8.6.7) now renders faithfully: the interpreter resolves it in a CMYK/spot colorant buffer — including per-sample colorant readings from im

Overprint (§8.6.7) now renders faithfully: the interpreter resolves it in a CMYK/spot colorant buffer — including per-sample colorant readings from images — and hands CanvasPdfDevice the composited colour, so a neutral ink knocks a DeviceCMYK backdrop's process colorants out to grey while a spot backdrop of the same colour survives. CanvasPdfDevice's darken approximation remains only for draws the buffer declines (#502, #604).
New tools: a hyperlink tool (PdfEditTool.link) authors external (URI) and in-document (GoTo) links from a box drag or the current text selection, via PdfLinkTarget and showPdfAddLinkDialog (#500); crop for placed images and raster snapshots (PdfImageCropOverlay) (#504); annotation lock/unlock with Acrobat/Bluebeam interop (#493); and keyboard shortcuts for every editing tool through Shift-extension bindings (#497).
The annotation properties panel groups its controls into collapsible sections (#543), and the search panel can search annotation contents (note bodies, free-text boxes) alongside page text — PdfSearchOptions gains searchAnnotations (on by default) (#495). Pages can be deleted from the thumbnail strip and grid with Delete/Backspace (#498).
Rendering is dramatically faster on large or image-heavy documents, and now progressive: PdfViewer starts a default render worker (#396), streams partial records as they are produced and reveals pages top-down as content arrives (on by default, native and web transports) (#564), resumes a preempted page record instead of restarting (#530), decodes a page's images concurrently (#454), extracts search text off the UI thread (#396), and budgets the thumbnail record to its tile size off the platform thread (#603). A page's image decodes are shared across its records, glyph outlines are written once per record, the decoded-image cache is keyed by resolution on every path, and the scheduler no longer grants a page a second concurrent render (#451).
Annotation sync diffs against a cached baseline instead of re-opening the previous revision's document (#416). Bundled editor fonts defer off cold start (#569). The tune (style) button shows on the mobile toolbar (#584); the image tool hides when no imagePicker is wired (#574); free-text selection stays visible while the tune popup is open (#573); zoom is held, not just scroll, when a side panel is resized (#509); overlay hover cursors paint on their own repaint layer (#403).

Open source →

3.0.023 Jul 2026

The keyboard-shortcuts editor (Settings → Keyboard shortcuts…) now groups tools under tool-category headers (Select, Draw, Shapes, Insert, Measure, Ed

The keyboard-shortcuts editor (Settings → Keyboard shortcuts…) now groups tools under tool-category headers (Select, Draw, Shapes, Insert, Measure, Edit) and adds a search box that filters by tool name or bound key. New public pdfEditToolGroupOf(PdfEditTool); PdfEditToolGroup moved to the tool_shortcuts library (still exported, so no import change for callers).
Breaking: the six bundled editor fonts and the web render worker moved out of this package into the optional dart_pdf_editor_assets package, so viewer-only apps no longer bundle their ~1.7 MB on every platform (#459). To keep the historical full-featured behaviour, add that package and call registerBundledEditorAssets() once at startup. Missing assets degrade gracefully: the font menu drops its "bundled" group, composite-text fallback is skipped, and web rendering falls back to the main thread. pdfBundledFonts is now a mutable, empty-by-default registry (a PdfBundledFont can also carry a loadBytes byte loader for application-provided fonts), and pdfRenderWorkerScriptUrl defaults to null.
On web, if page rendering falls back to the main thread because no render-worker script is configured, a one-time debug-only warning is now logged pointing at registerBundledEditorAssets(), so an app that forgot to opt into the worker asset notices the silent performance cliff. Release and profile builds stay silent.

Internationalization

The editor is now fully localized: every user-facing string is extracted to ARB message catalogs and looked up through generated localizations, with an RTL layout sweep and a DevTools locale override for testing (#477, #499, #512). Ships tier-1 locales — Spanish, German, French, Portuguese, Russian, Japanese, Chinese, Hindi, Arabic — alongside a Settings language picker and an ARB coverage gate (#516, #519). Web builds load non-active locales lazily (#483).

Editing

Replace document-identity checks with an explicit revision token so the viewer and controller track edits by revision rather than object identity, fixing stale state after same-geometry document swaps (#414).
Add contextMenuEnabled to suppress the built-in annotation/text context menus for hosts that supply their own (#463).
Hold Shift while drawing to constrain ink/line strokes to straight lines (#494), and right-click an annotation to "Set as default style" (#492).
Group large context menus with dividers (#488).
Paste now works on web (text via the browser clipboard) (#476), the Snapshot vector clipboard is shared across document tabs (#474), and a pasted image's opacity can be changed after the fact (#466).
Signature pad gains predictive ink and a touch more stroke width (#484).
Show a paste-location indicator on thumbnail-strip hover and keep the strip on the pasted page instead of scrolling to the top (#491, #489).
Counter-rotate a pasted annotation for the destination page's /Rotate so it is not spun when moved across pages of differing rotation (#460).
Key the annotation appearance cache on /Rect so a move repaints the annotation (#467), and fix stray dots in reduced-opacity ink annotations (#482).

Performance

Make the recorded single-walk render path the default (#394), split substituted-text shaping out of the replay phase and compose it per glyph (#454), and cap UI-thread and browser JPEG image decode to display resolution (#458).
Add a global live-raster memory budget (#405), memoize per-build search/selection rescans (#403), prewarm the render worker at app boot (#450), and cap prefetched off-focus pages' image resolution (#451).

Open source →

2.1.021 Jul 2026

Add a reflow reading view: lazy scrolling over the extracted text, in-view navigation, a saved reading position, and a figure viewer (#380).

Add a reflow reading view: lazy scrolling over the extracted text, in-view navigation, a saved reading position, and a figure viewer (#380).
Expose progressive open on the reusable viewer widgets, so a host can render a document as its bytes arrive rather than after the last one (#378).
Grid-cull region replay and size-gate hover hit-testing on dense pages, so a CAD sheet's replay touches only the commands overlapping the region (#383), and build the region-replay grid index on the render-worker isolate to keep it off the UI thread (#389).
Scope tile invalidation to the pages it names: the ordering counter is now separate from the staleness test, so invalidating one page no longer discards in-flight tiles for every other page (#374).
Apply incremental revisions in place on the commit path instead of reopening the document (#395).
Resolve the hovered page once per pointer event rather than once per hit-test candidate (#403).
Let a page leave its sticky render worker when that worker is busier than another active one, so a queued page is not held behind an unrelated backlog (#456).
Fix a failed deep-zoom detail render stranding the full-image refinement, and give each render its own vector-first detail completer so concurrent renders cannot complete each other's futures (#420).
Add an unstable render-trace diagnostics entry point, package:dart_pdf_editor/perf_log.dart (deliberately not exported from the package entry, mirroring package:pdf_cos/perf.dart). PdfPerfLog gains a sink so a host can route the trace into its own log, and the interpret trace splits into wait/build and decode/replay phases (#454).
Make the viewer scroll-indicator API axis-aware: PdfScrollMetrics now describes the viewer's main layout axis and carries an Axis scrollAxis saying which. In PdfPageLayout.horizontalContinuous, PdfViewer.scrollIndicatorBuilder replaces the stock bottom bar (not just the right-edge bar in vertical layout), the metrics report the horizontal position/extent/pixels, and jumpToNormalized moves along the horizontal axis; the cross-axis (zoom-window) scrollbar is unchanged. Vertical behavior is source-compatible (scrollAxis defaults to Axis.vertical) (#428).
Add X-strip transcript banding to bound retained memory on extreme-aspect pages (PdfBandedTranscript): partition a page's PdfRenderCommand transcript into N vertical strips along the horizontal pan axis, retain only the strips overlapping the viewport, and re-materialize an evicted strip on demand. PdfRetainedScene gains bandTranscript/bands/reband, dropRegionIndex, and debugUnitBandHistogram; the viewer's memory-pressure path now sheds retained-scene spatial metadata via PdfRetainedScene.handleMemoryPressure (dropped indices rebuild identically, evicted strips re-materialize, so there is no visual regression) (#385).

Open source →

2.0.019 Jul 2026

Breaking: remove the pure style forwarders from PdfEditingController. The ~19 tool-style properties that only mirrored preferences (strokeWidth, corne

Breaking: remove the pure style forwarders from PdfEditingController. The ~19 tool-style properties that only mirrored preferences (strokeWidth, cornerRadius, eraserRadius, fontSize, textAlign, opacity, lineStyle, lineScale, lineStartEnding, lineEndEnding, textFillColor, textBorderColor, shapeFillColor, author, stampDateFormat, stampTimeFormat, fingerDrawsInk, measurementScale, signature) are gone; read and write them through controller.preferences.<name> instead. The setters that carried editing side effects stay on the controller (color still recolours the active stamp and honours the colour lock; fontFamily still clears the embedded activeFont), as do the computed helpers (dashedStroke, hasMeasurementScale) and every signature/measurement behaviour method (placeSignature, calibrateScale, measuredDistance, …) (#317).
Expose a customizable viewer scroll indicator / page-scrubber API: a read-only PdfScrollMetrics snapshot (page count, current page, normalized position/extent, pixel offsets, zoom) via PdfViewerController.scrollMetrics, page-aware commands jumpToNormalized and animateToPage alongside the existing jumpToPage, and a PdfViewer.scrollIndicatorBuilder that replaces the built-in vertical scrollbar with a host widget (#326).
Add configurable page layouts to PdfViewer: the new pageLayout parameter takes a PdfPageLayout - verticalContinuous() (the default, top-to-bottom) or horizontalContinuous() (left-to-right, book-like reading and wide documents). The horizontal layout keeps every viewer behaviour along the new axis - virtualization, zoom/pan, current-page tracking, search and destination navigation, text selection, overlays, links, forms/annotation hit-testing, keyboard navigation, and mixed page sizes (pages fit the viewport height and centre on the cross axis). PdfPageLayout is a value type with named constructors so further layouts (facing/two-page) can be added without changing the viewer's API. PdfReader and PdfEditorView forward the option (#324).
Deep-zoom detail via a budgeted zoom-bucket tile pyramid (PdfTileStore), now enabled by default on every platform: past the raster caps the viewer renders and caches the visible slice at native resolution instead of upscaling, with a budget-vs-demand guard against eviction thrash (#314).
Open local and remote files through the ranged PdfByteSource so the first page paints before the whole file is read/downloaded (#359, #328).
Wire Sigstore/Fulcio keyless and one-tap self-signed signing into the editor, including the "Create signing identity" UI and secure key storage (#322).
Introduce PdfEditToolBehavior as the single source of tool identity, and collapse PdfViewer's separate document + editing inputs into one revision source (#311, #319).
Draggable, dockable side panels (any edge, side-by-side or tab groups, with a saved layout) and an F12 developer-tools overlay (#362, #360).
Annotation list gains a hover more-menu and ctrl/shift multi-select (#350), and the toolbar font chip shows the real embedded face (#348).

Open source →

1.4.716 Jul 2026

Print through each platform's native print system: the Dart engine renders every page itself and streams it to the OS (Windows, macOS, iOS, Android, L

Print through each platform's native print system: the Dart engine renders every page itself and streams it to the OS (Windows, macOS, iOS, Android, Linux) or the browser, replacing the printing plugin and its bundled PDFium so broken-but-renderable documents no longer crash on print. rasterizePdfForPrinting and printPdfBytes back the path (#291).
Add page copy/cut/paste to the thumbnail strip and grid, shared across document tabs via a process-wide PdfPageClipboard: controller gains copyPages/cutPages/pastePages (and the *SelectedPages variants), wired into the context menu, bulk-selection bar, header menu, and Cmd/Ctrl+C/X/V (#299).
Round the corners of rectangle (/Square) shapes: a rectangle-only "Corner radius" slider in the tune popup, applied at creation and restylable on a selected rectangle (restyleSelected(cornerRadius:), canRoundSelectedCorners, selectedCornerRadius) (#297).
Separate line thickness from pattern scale: a "Pattern scale" slider (0.5x–4x) sizes dash lengths and cloud scallops independently of the pen width (restyleSelected(scale:), selectedLineScale), so a thin outline can carry big puffs or a heavy line tight dashes (#300).
Add and remove /PolyLine and /Polygon vertices from the context menu (Add node / Remove node), splicing into the nearest edge or dropping the nearest vertex — addSelectedVertexAt, removeSelectedVertexNear, canAddSelectedVertex, canRemoveSelectedVertex (#288).
Recolour pasted vector snapshots from the annotation context menu ("Recolour…"): retints the captured Form XObject to a single ink without touching geometry — recolorSnapshotSelected, canRecolorSnapshotSelected (#301).
Add a swatch grid to the annotation colour picker below the value row: a fixed palette plus recently-chosen colours (persisted, capped at 18) and the colours already used in the open document (documentAnnotationColors), via pickEditingColor (#292).
Shapes and revision clouds: add an "Outline" colour row to the tune popup, next to "Fill", so a cloud's stroke colour can be picked from the tune menu (not just the toolbar swatches) — armed or with the shape selected.
Curl revision-cloud scallops inward with a trailing-foot lean so each puff rolls one way into the hand-drawn Bluebeam/Acrobat look, matched in the live editor preview (#295).
Fill cloudy /Polygon annotations to the scalloped cloud edges instead of only to the straight vertex polygon, mirrored in the live preview so no unfilled crescent shows under each row of puffs (#287).
Preview a 'TEXT' placeholder while hovering the text-stamp tool so the click target is visible even when no custom stamp is active (#293).
Make the custom-stamp template composer use the on-page overlay's touch interaction: a GestureDetector with touch slop and eight corner/edge handles, so tap-to-select no longer nudges the component and resizing grabs a forgiving target (#304).
Let the style sliders' numeric readouts accept a wider typed range than the slider scale can reach (PdfSliderValueField fieldMin/fieldMax; point/size values up to kPdfTypedSizeMax = 1000, opacity a true 0–100%, line spacing 0.1–100x) (#302).
Fix Ctrl/⌘+S doing nothing on a brand-new untitled document with no edits yet: PdfEditorView.alwaysAllowSave keeps Save enabled so the first save routes to Save As (#294).
Nudge the selected annotation(s) with the arrow keys — 1 pt per press, 10 pt with Shift — translating the move through the page's /Rotate so a key always slides the annotation the way it points on screen. A bare arrow still scrolls the page when nothing is selected.
Bound the render worker's page-record cache by entry count, not only by decoded-image bytes: image-free and vector-first records weigh zero, so on a long scroll they used to accumulate one (or more) per page for the life of the worker with no limit (issue #283). The cache now caps retained records (pdfRenderWorkerCacheMaxEntries, default 64), so a long document's memory no longer grows unbounded in the page count.
Bound the viewer's four per-page maps (text, annotations, visible annotations, form-field rects) by entry count via the new LRU PdfPageObjectCache (pdfViewerPageObjectCacheMaxEntries, default 128), so revisiting pages still hits but retention no longer grows one entry per page visited for the life of the viewer (issue #283).
Size the decoded-image cache budget per platform (PdfImageCache default 256 MB desktop, 128 MB mobile/web, 64 MB on a ≤2 GB browser device), measured against the corpus, and clear the image + preview caches on didHaveMemoryPressure (#284, issue #281).
Unify per-page render timings into one PdfRenderTrace value type that both isolates fill (worker parse/interpret/serialize; main isolate transfer/deserialize/replay/rasterize), surfaced via PdfRenderTrace.captureOffThread and PdfRenderWorker.lastRenderTrace (free unless PdfPerfLog is on). Adds PdfRenderPhaseBudget and a default-on render-trace gate test guarding against per-phase regressions; PdfWorkerPhaseTimings is now an alias of the new type (#321).
Free-text boxes: add line spacing, character spacing, font width (horizontal scaling), and underline controls (tune popup + properties panel), with an inline underline toggle and Cmd/Ctrl+U shortcut.
Fix backspacing in an inline free-text editor sliding a bold (or otherwise styled) run onto the following characters — style runs now follow their own text across edits.
Resize an embedded/bundled-font free-text box by re-wrapping it (as with base-14 boxes) instead of stretching the glyphs, and keep rich per-run styling across the resize.
Keep a free-text box's alignment in the resize preview and post-commit afterimage so it no longer appears to snap to the left while dragging.
Show a free-text box's actual (embedded/bundled) font name in the font picker instead of collapsing it to "Sans".
Stop the inline editor's line spacing shifting when a run's font changes in the tune popup (font-independent leading, matching the appearance).
Fix tapping a free-text style-chip button (underline, size, …) on touch devices committing and deselecting the box out from under the tap.

Open source →

1.4.615 Jul 2026

Expose edit-and-style and markup actions when text is selected in an editor-backed viewer, on both touch and desktop context menus.

Expose edit-and-style and markup actions when text is selected in an editor-backed viewer, on both touch and desktop context menus.
Treat each applyRemoteChange as an undo checkpoint: local edits made after a remote apply stay undoable, but undo can no longer remove remote state or cross into older local history.
Fall back to the bundled DejaVu Sans and platform Arabic faces when substituting fonts, so Arabic (including the presentation forms copied out of shaped PDFs), Hebrew, Greek, and Cyrillic render on hosts whose Helvetica substitute has no suitable fallback.
Regenerate the bundled web render worker so browser builds pick up the scaled CCITT decode path and the right-to-left text fixes.

Open source →

1.4.514 Jul 2026

Correct selection and copy ordering for multi-word Arabic and other right-to-left page text.

Correct selection and copy ordering for multi-word Arabic and other right-to-left page text.

Open source →

1.4.413 Jul 2026

Regenerate the bundled web render worker from the current sources so web consumers receive the 1.4.3 form and fragmented-strip rendering fixes.

Regenerate the bundled web render worker from the current sources so web consumers receive the 1.4.3 form and fragmented-strip rendering fixes.

Open source →

1.4.313 Jul 2026

Bake page rotation into regenerated form appearances so existing and newly authored fields remain upright after rotating the document.

Bake page rotation into regenerated form appearances so existing and newly authored fields remain upright after rotating the document.
Add certificate-backed PAdES B-B digital signing to editing sessions via PdfDigitalSignatureIdentity and addDigitalSignature, including key/cert matching, validation before commit, and undo/redo support.
Allow a selected form field to be converted between text, check-box, and image-button types from the contextual toolbar or properties panel while keeping the rebuilt field selected.
Make form-field right-click select the field instead of opening an oversized context menu, with value, rename, type, delete, flatten, and style actions in the contextual toolbar.
Keep the floating stroke-width, opacity, and measurement readouts at a constant screen size and cursor offset while the document is zoomed.
Show common and mixed (Varies) values for multi-selected annotations in the properties panel, with bulk edits for compatible appearance, line, contents, and author properties.
Restyle annotation-thread Reply and Resolve controls as compact, muted text actions that emphasize only on hover, focus, or press.
Keep clip-heavy Visio and CAD pages responsive by detecting fragmented sparse-strip plans before worker binning and using cached canvas replay.

Open source →

1.4.212 Jul 2026

Keep touch scrolling responsive on zoomed mixed-width documents when a gesture starts on the canvas or in an inter-page gap, and keep the current page

Keep touch scrolling responsive on zoomed mixed-width documents when a gesture starts on the canvas or in an inter-page gap, and keep the current page and render focus synchronized with the transformed viewport.
Prevent dense pages from rendering as solid magenta on iPad by routing iOS deep-zoom replay through the stable canvas path instead of shader-backed sparse strips.

Open source →

1.4.112 Jul 2026

Add callout annotations and rich-text styling for in-place document text edits, including the editor controls and annotation presentation support.

Add callout annotations and rich-text styling for in-place document text edits, including the editor controls and annotation presentation support.
Make dense CAD and illustration pages substantially more responsive with retained-scene replay, adaptive render policy, sparse strip rendering, speculative visible-region detail, and exact raster reuse on revisits.
Run strip planning and dense recording off the UI thread on native and web; reuse compact Web Worker transcripts and prioritize visible detail to reduce cold-start, zoom, and pan latency.
Bundle the default web render worker as a package asset and repair production web loading, while retaining the public override for custom worker hosting.
Keep page edges reachable after Android pinch gestures and keep Slug glyphs and image content sharp while zooming and panning.
Consolidate annotation policy, editing interactions, shell lifecycle, page rendering, sidebar framing, and edit transactions without removing exported APIs.

Open source →

1.4.07 Jul 2026

Color processing: add a Bluebeam-style tool that can list document colors, replace one or more selected colors across selected pages or the whole docu

Color processing: add a Bluebeam-style tool that can list document colors, replace one or more selected colors across selected pages or the whole document, replace colors with transparency, and run large-document processing in the background to avoid UI hangs.
Bookmarks: add a PDF outline/bookmarks panel with create, edit, delete, and navigation support in the reader and editor shells.
Editing tools: add freehand highlighting, cloudy polygon annotations, annotation apply-to-pages, selected-image export, color locking, and stronger style isolation when switching tools.
Stamps: support hover placement previews, custom template dimensions, and import/export for custom stamp libraries.
Page and annotation chrome: add hover-only controls on mouse platforms, arrow-key navigation for thumbnail/page views, page-grid click-to-select with double-click navigation, and layout fixes for thumbnail/search chrome.
Web rendering: ship the render worker as a package asset and use it by default, so Flutter web apps no longer need to set pdfRenderWorkerScriptUrl unless they want to self-host the worker.
App integrations: improve macOS open-with/file access handling, multi-file picking, recent-file menus, menu shortcut labels, and the built-in feedback link.

Open source →

1.3.25 Jul 2026

Viewer rendering: annotation appearances now paint in a separate overlay from the base page raster, so annotation-only edits no longer invalidate the

Viewer rendering: annotation appearances now paint in a separate overlay from the base page raster, so annotation-only edits no longer invalidate the expensive page image or flicker while a refreshed appearance is rendering.
Viewer interaction: motion-based render hold defers expensive UI work during active gestures, chrome stays visually constant while zoomed, and annotation hit handling exposes a new PdfAnnotationTapHandler callback.
Editing UI: the draw toolbar includes a freehand highlight tool, active text selections can be styled as markup, count-tool cursor previews are more accurate, and the takeoff panel has improved accessibility labels.
Forms: right-click form-field editing and form-style controls are available from the viewer, including font and visual style updates.
Stamps: custom stamps can be vector templates with dynamic fields, images, saved signatures, metadata tags/types, host-provided stamp lists, and configurable date/time placeholder formats.
Fix rendering artifacts from stale detail patches after visual content changes and keep the current annotation layer visible while updated appearances load.

Open source →

1.3.12 Jul 2026

Font menu: offer the host platform's installed fonts as embeddable choices alongside the base-14 families and bundled fonts. A host fills the new pdfP

Font menu: offer the host platform's installed fonts as embeddable choices alongside the base-14 families and bundled fonts. A host fills the new pdfPlatformFonts registry once at startup (the example/app scan the OS font directories on native; web stays empty), and every font menu picks them up by default. Picking one embeds its outlines into the document so the text renders and prints everywhere. New PdfPlatformFont type and an optional platformFonts argument on PdfFontMenuButton/showPdfFontMenu.
PdfEditorView can now replace the stock bottom editing toolbar via toolbarBuilder, in addition to the existing leading/trailing toolbar extension points.
OCR: PdfEditor.applyOcr now accepts a PdfOcrRasterizer, so hosts and tests can provide their own rasterization backend while still using the built-in text-layer injection flow.
Rendering: PdfPageRenderPlan carries page color, annotation visibility, and view rotation through the renderer paths, keeping viewer rasters, color sampling, and worker replay in sync.
Shells: shared panel layout keeps the viewer element stable while docking side panels, bottom sheets, and floating or docked toolbars.

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1.3.027 Jun 2026

Nothing published for this version

1.2.320 Jun 2026

Free text: align a text box left, center, or right. The alignment buttons sit in the text style popup and the annotation properties panel - they apply

Free text: align a text box left, center, or right. The alignment buttons sit in the text style popup and the annotation properties panel - they apply to the selected box and set the default for new boxes (remembered per the text tool). New boxes still follow the text direction until you pick an alignment.

Open source →

1.2.217 Jun 2026

View rotation: rotate the displayed page in 90° steps without changing the document's page orientation; selection, overlays, and hit-testing follow th

View rotation: rotate the displayed page in 90° steps without changing the document's page orientation; selection, overlays, and hit-testing follow the rotated view.
Background render worker: in-flight jobs are now preempted when superseded (fast scrolls drop stale work instead of queueing), the web worker compiles reliably, and the viewer recovers from a slow or silent worker instead of hanging.
Touch: horizontal scrolling rubber-bands at the edges and pans in reader mode; deeper zoom is allowed for long plots and large CAD drawings.
Free text: author text in any embedded TrueType/OpenType font via the font menu, paste clipboard text as a free-text annotation, an autosize shortcut, right-to-left text direction, corrected inline editing baseline, and double-click-to-edit. Non-Latin glyphs and text on rotated pages render correctly.
Ink: the cursor stays at the stroke end, switching to the eraser defers the pending commit, and Escape commits the in-progress stroke instead of discarding it.
Save As (Ctrl/Cmd+Shift+S) writes the document to a new file.
Snapshot/stamp paste shows a preview before the raster refresh.
Android: support 16 KB memory page sizes.

Open source →

1.2.115 Jun 2026

Shorten the package description so pub.dev awards the full pubspec score.

Shorten the package description so pub.dev awards the full pubspec score.

Open source →

1.2.015 Jun 2026

Responsive shell and mobile editing chrome improvements, including compact tab switching, mobile header controls, bottom-sheet shell options, and clea

Responsive shell and mobile editing chrome improvements, including compact tab switching, mobile header controls, bottom-sheet shell options, and cleaner menu layout.
Standalone-app integration polish: browser-local OCR wiring, loading state while opening PDFs, trackpad momentum when edit tools are active, Apple Pencil double-tap eraser toggle, and clearer markup text-selection labels.
Web startup and branded splash/icon updates for the app and example.

Open source →

1.1.014 Jun 2026

Full font selection for text boxes: a font menu (in the style popup and the properties panel) offers the standard families, a set of bundled full-Unic

Full font selection for text boxes: a font menu (in the style popup and the properties panel) offers the standard families, a set of bundled full-Unicode fonts (DejaVu Sans/Serif/Mono), and "Load font…" - a host-provided PdfFontPicker for any .ttf/.otf file. The chosen font embeds into the document so the text renders and prints identically everywhere. PdfEditingController.activeFont/setCustomFont drive new text; editing an embedded-font box keeps its font.
Rotate pages from the thumbnail strip: a per-tile rotate-right button, plus rotate-left/right actions in the multi-select bar. PdfEditingController.rotatePages/rotateSelectedPages turn pages clockwise (or counterclockwise) without shifting page indices, so the page selection survives the edit.
Snapshot tool (PdfEditTool.snapshot, in the Edit toolbar): drag a region to capture it, Bluebeam-style. The captured region is rendered to a PNG handed to PdfViewer.onSnapshot (copy/save/share) AND kept on the controller as detached vector graphics. Paste it back into the PDF with ⌘V/Ctrl+V or the right-click Paste (PdfEditingController. pasteSnapshot) and it stays vector, crisp at any zoom.
Background rendering: heavy pages now interpret off the UI thread, so scrolling and drawing stay smooth on large/CAD documents. PdfRenderWorker runs page interpretation and image decode in a background isolate (native) or a dedicated Web Worker (web); set pdfRenderWorkerScriptUrl and build the worker bundle with dart run dart_pdf_editor:build_web_worker to enable it on the web. The viewer also paints a low-res preview of pages still rendering during a fast scroll, and cancels superseded prefetches.
Reflow reading view: images and diagrams now appear inline with the text, decoded and laid out at their on-page aspect ratio in reading order; bullet/numbered lists read as separate, indented items. PdfReflowView.showImages (default true) toggles back to text-only. The view now scrolls through a single non-lazy list so the scrollbar no longer jumps as pages of differing heights (text vs. images) come into view.
Toolbar tool types can be disabled individually: the new PdfEditingToolbar.groups (and PdfEditorFeatures.toolGroups) takes a set of PdfEditToolGroup values (Select, Markup, Draw, Shapes, Insert, Measure, Edit). Pass a subset to hide whole tool types at once, without enumerating each tool in tools.
Count tool: place Bluebeam-style check-marks and watch a running on-page tally. This is the editor surface for PdfEditor.addCheckMark.
Right-click text context menu on mouse platforms (copy, select all).
Thumbnail strip: Shift-click to multi-select a range of pages.
Single-key keyboard shortcuts for the common editing tools.
Performance: decoded image XObjects and substituted-text glyph layouts are cached across renders; per-pixel image decode is inlined; the preview prerender is bounded to a window around the viewport.
Fixes: page content no longer flashes under a moved annotation's old spot; mobile toolbar colors show only when relevant to the current tool; thumbnail-sheet scrolling and header layout overflow.

Open source →

1.0.013 Jun 2026

First stable release. Highlights since 0.1.0:

Redaction tool: mark regions and burn the content irreversibly.
Document comparison: pixel + text diff with a synchronized compare view.
Text reflow: a paragraph-aware reading view of extracted text.
More annotation tools: line/polyline/polygon with the full line-ending picker, an insert-image tool, customizable dash line styles, and polygon fills.
Text boxes: bold/italic across the standard fonts, with font, outline, and fill controls in the style popup.
Forms: fill fields directly in reading mode, and use the form tool to select, move, resize, and rename fields.
Per-tool style memory: each annotation tool remembers its own color, stroke, opacity, font, and line style across sessions.
Responsive UI: a floating toolbar, side panels and the thumbnail strip become bottom sheets on small screens, and tap-to-place for text, stamps, and signatures.
Input & performance: reduced Apple Pencil latency (forward-extrapolated prediction), single-finger scroll in pencil mode, Shift+drag marquee selection, aspect-lock and past-zero invert on resize, an eraser-size control, render pacing for smooth fast-scrolling, compact auto-dismissing snackbars, and a ⌘S / Ctrl+S save shortcut.
Page management: PdfEditingController.addBlankPage (sized to its neighbour by default), insertPagesFrom/insertPagesFromBytes (merge pages from another PDF), and exportPages/exportPageRange (split off a standalone PDF). The thumbnail strip gained an "Add page" footer button (shown when allowPageEditing), so PdfEditorView gets it out of the box. PdfEditorView also exposes the other two in its header via onPickPdfToInsert (host returns a PDF to merge after the current page) and onExportPages (host saves the exported range); the range is chosen with the new exported showPdfPageRangeDialog.
Pluggable OCR: PdfOcrEngine (a host-supplied recognizer such as ML Kit, Tesseract WASM, a cloud API; none ships in-tree) plus PdfEditor.applyOcr(pageIndex, engine), which rasterizes the page, runs the engine, and injects an invisible selectable/searchable text layer. PdfOcrPageImage.userSpaceRect maps the engine's pixel boxes back to PDF user space (crop box and /Rotate aware).
Reopen documents where the user left them: PdfViewport (a resolution-independent scroll-position + zoom snapshot), PdfViewerController.captureViewport/restoreViewport, PdfViewer.initialViewport, and per-document persistence in PdfEditingPreferences (viewportFor/setViewport). The PdfReader and PdfEditorView shells remember and restore each document's position automatically. Pass documentId for a stable key, or let it derive one from the bytes (pdfDocumentKey).
Keyboard shortcuts for the common editing tools: single, unmodified keys arm a tool from the viewer (V select, P pen/ink, E eraser, R rectangle, O ellipse, L line, A arrow, T text box, N note, S stamp, I image, G snapshot, H signature, M measure, F form, C content, K redact); pressing a tool's key again drops back to Select. Active only during an editing session and suppressed while an in-place text editor (free text or form field) is open. The bindings are exposed as pdfEditToolShortcuts and surfaced in the toolbar tooltips (e.g. "Rectangle (R)").

Open source →

0.1.012 Jun 2026

Drop-in widgets: PdfEditorView (the full editor: header bar with search and panel toggles, all panels, the editing toolbar, save) and PdfReader (view-

Initial release.

Drop-in widgets: PdfEditorView (the full editor: header bar with search and panel toggles, all panels, the editing toolbar, save) and PdfReader (view-only with search, page navigation, and a read-only thumbnail strip), both theme-following and configurable via PdfEditorFeatures/PdfReaderFeatures (features and tools toggle off; styling via the Material theme and PdfViewerTheme).
PdfViewer: zooming/panning viewer with text selection, search, link navigation, page-fit modes, deep-zoom detail rendering, low-res page previews under fast scrolling (PdfPagePreviewCache + background prerender), theming (PdfViewerTheme), dark mode, and custom page colors.
PdfEditingController + tool overlays: highlight/ink (pressure + Catmull-Rom smoothing)/shapes/free text/notes/stamps/signatures, select/move/resize/rotate with live previews, slicing eraser, clipboard, undo/redo as incremental saves.
Measurement tools: distance/perimeter/area annotations with scale calibration (PdfMeasurementScale, showPdfScaleDialog, persisted in preferences) and a live readout chip that rides the cursor for mouse and floats above the finger for touch/stylus.
Form filling UI: text, checkbox, radio, choice, button images, plus field administration, flattening, and a form-field highlight wash (PdfViewer.highlightFormFields, on by default).
Panels: thumbnail sidebar with drag reorder, annotation sidebar with search and multi-select, properties panel, search results panel.
Permissions: per-annotation read-only (/F flags + canEditAnnotation predicate) and a hide-all-annotations toggle.
Sync surface: annotationChanges feed + applyRemoteChange for collaborative annotation stores.
Touch/stylus support: pinch zoom, scroll fling momentum, palm rejection, Apple Pencil pressure, long-press text selection with handles, and a long-press context menu (copy/cut/paste and z-order without a right click).

Open source →

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