pypdf

What's new

Security (SEC)

• Further restrict FlateDecode recovery (#4073) by @stefan6419846
• Limit entry count for TrueType and Type1 font /Widths (#4072) by @stefan6419846
• Limit allowed length of tokens in parse_bfchar (#4071) by @stefan6419846

Bug Fixes (BUG)

• Use current text matrix for visitor_text (#4062) by @r-kamei
• Repeat the letter for /S /A and /S /a page labels past Z (#4065) by @youdie006
• Use font color for FreeText default appearance (#4051) by @Yuki9814

Robustness (ROB)

• Fix compatibility with fonttools < 4.58.0 (#4050, #4059) by @MeggyCal and @stefan6419846

Documentation (DOC)

• Use combined matrix in visitor examples (#4066) by @r-kamei

Full Changelog

What's new

Please note that this release requires users which previously overwrote the default limits to migrate to the new approach: Docs

In short:

• Use apply_configuration as a context manager to temporarily overwrite configuration values.
• Use overwrite_configuration to change the configuration values for the whole session.

The old overwrites should continue to work in most cases. If you have migrated successfully and do not need the legacy handling anymore (which can cause some overhead), consider using the temporary disable_legacy_handling setting:

from pypdf import overwrite_configuration

overwrite_configuration(disable_legacy_handling=True)

In case you are experiencing some unexpected issues after the migration, consider opening a new issue (or commenting on an existing one) with the necessary details to reproduce it.

Security (SEC)

• Limit allowed length of indirect object tokens (#4055) by @stefan6419846

Deprecations (DEP)

• Rework configuration value handling (#4044) by @stefan6419846

New Features (ENH)

• Draw borders and backgrounds for appearance streams and annotations (#4033) by @PJBrs

Full Changelog

What's new

Security (SEC)

• Limit value for Roman numerals (#4047) by @stefan6419846

New Features (ENH)

• _cmap.py: Also parse encoding for embedded CFF Type1 fonts (#4032) by @PJBrs

Performance Improvements (PI)

• Cache repeated text extraction character lookups (#4036) by @petermik68-sudo

Bug Fixes (BUG)

• Treat an empty /Filter array as no filter when extracting images (#4026) by @Anai-Guo
• Detect a duplicate dictionary key whose first value is falsy (#4024) by @devYRPauli
• Make is_open=False collapse outline items (#3998) by @SomSamantray

Robustness (ROB)

• Multiple changes for wrong inputs by @RavSinghChandan
• Skip trailing duplicate %%EOF markers when locating startxref (#4015) by @Anai-Guo
• Do not crash on a non-array destination (#3976) by @eeshsaxena
• Handle annotations without subtype during merge (#3999) by @Nexlu1

Documentation (DOC)

• Use AnnotationFlag enum instead of plain integers (#3997) by @RavSinghChandan

Code Style (STY)

• Multiple small changes detected from test runs by @RavSinghChandan

Full Changelog

What's new

Bug Fixes (BUG)

• Make remove_from_tree() work on outline items (#3939) by @RISHIKKASULA
• Be more lenient about space width in layout mode text extraction (#3992) by @PJBrs
• Do not scale the text leading by the font size (#3987) by @matthewkogan
• Update annotation appearance stream matrix on page transform (#3968) by @BashfulHippo
• Allow repeated page references (#3959) by @yuming-long

Robustness (ROB)

• Improve RC4 fallback when cryptography can't provide it (#3853) by @msylw

Full Changelog

What's new

Security (SEC)

• Limit iterations for outline retrieval and XForm text extraction (#3966) by @stefan6419846

Full Changelog

What's new

Security (SEC)

• Detect cycles in TreeObject.insert_child (#3964) by @stefan6419846

New Features (ENH)

• AppearanceStream: Allow arbitrary rotations and apply rotations for annotation appearance streams (#3917) by @PJBrs
• AppearanceStream: Consider more encodings for Type1 core fonts (#3905) by @PJBrs

Performance Improvements (PI)

• Build /ToUnicode source-code bytes directly in parse_bfrange (#3952) by @Anai-Guo

Bug Fixes (BUG)

• Preserve internal Link annotations when appending/merging (#3953) (#3954) by @Anai-Guo
• Fix false inline image end markers (#3922) by @ciphercom
• Reject typeless non-page /Kids entries in strict mode (#3955) by @Anai-Guo
• Apply character spacing (Tc) per glyph in layout-mode extraction (#3951) by @Anai-Guo
• Keep the Adobe CMYK inversion when an explicit /Decode is present (#3943) by @RavSinghChandan

Robustness (ROB)

• AppearanceStream: Only escape parentheses for 8-bit fonts (#3961) by @PJBrs
• Recover the trailer from a cross-reference stream when rebuilding the xref (#3950) by @Anai-Guo

Maintenance (MAINT)

• Deduplicate CatalogAttributes and CatalogDictionary (#3940) by @j-t-1

Code Style (STY)

• Type pages as a Sequence rather than a list (#3957) by @RavSinghChandan

Full Changelog

What's new

Security (SEC)

• Improve performance of read_until_whitespace (#3947) by @stefan6419846
• Limit CID width range and width count when loading fonts (#3946) by @stefan6419846
• Limit token length for ToUnicode entries (#3944) by @stefan6419846

Deprecations (DEP)

• Deprecate previously missed inline_images setter as well (#3897) by @stefan6419846

New Features (ENH)

• Add ActualText tag when we produce RTL appearance stream (#3901) by @PJBrs
• Allow keeping original PDF header in non-incremental clone mode (#3918) by @pctablet505
• AppearanceStream: Add support for RTL appearance streams with Arabic characters (#3831) by @PJBrs
• Add actions base class (#3552) by @j-t-1

Bug Fixes (BUG)

• Expand low-bit samples for images without a filter (#3938) by @RavSinghChandan
• Decode low-bit DeviceRGB images as RGB instead of palette (#3929) by @RavSinghChandan
• Correctly handle IndirectObject in FlateDecode.decode DecodeParms (#3937) by @stefan6419846

Documentation (DOC)

• Image and attachment filenames are unsanitized (#3942) by @stefan6419846

Maintenance (MAINT)

• Update charset mappings (#3935) by @stefan6419846

Full Changelog

What's new

Security (SEC)

• Avoid infinite loops for incomplete ASCII85 and ASCIIHex inline images (#3892) by @stefan6419846

Full Changelog

What's new

Security (SEC)

• Detect end of stream during inline image end marker detection (#3891) by @stefan6419846

Full Changelog

What's new

Security (SEC)

• Apply general limit for requested image size (#3888) by @stefan6419846
• Speed up recovery when reading broken cross-reference table (#3887) by @stefan6419846

New Features (ENH)

• Check whether image is displayed on a given page (#3738) by @andreasntr

Robustness (ROB)

• Several fixes by @metsw24-max

Full Changelog

What's new

Security (SEC)

• Apply MAX_DECLARED_STREAM_LENGTH to streams without length as well (#3871) by @stefan6419846

Performance Improvements (PI)

• Avoid per-pixel getpixel loop for 1-bit indexed images (#3854) by @Samuel-Harris

Robustness (ROB)

• Several fixes by @metsw24-max

Maintenance (MAINT)

• Make mypy assert messages consistent (#3849) by @j-t-1

Full Changelog

What's new

Security (SEC)

• Detect multi-hop cyclic /Pages trees in _flatten to prevent SIGSEGV (#3847) by @fredericoschardong

Robustness (ROB)

• Fix UnboundLocalError in _read_standard_xref_table on a malformed entry (#3841) by @joszamama
• Raise PdfStreamError on non-hexadecimal bytes in hex readers (#3832) by @metsw24-max

Full Changelog

What's new

Security (SEC)

• Prevent infinite loops when processing threads/articles (#3839) by @stefan6419846

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Security (SEC)

• Avoid infinite loops for outlines and text extraction (#3830)

New Features (ENH)

• Add Japanese predefined CMaps (#3800)
• Font: Collect all character widths, not only those that can be unicode mapped (#3798)

Robustness (ROB)

• Recover a corrupt trailing startxref pointer (closes #3238) (#3826)
• Handle /Pages node without /Kids during flattening (#3825)
• Accept inline image EI marker at the end of a content stream (#3827)

Maintenance (MAINT)

• Type the always-raising deprecation helpers as NoReturn (#3819)

Full Changelog

Security (SEC)

• Optimize _decode_png_prediction regarding memory and speed (#3806)
• Improve loop control in text extraction (#3805)

Full Changelog

Security (SEC)

• Limit input size and element count for XMP metadata (#3796)

Robustness (ROB)

• Prevent cyclic parent hierarchies for inherited dictionaries (#3795)
• Deal with invalid first code in LZW decoder (#3794)

Full Changelog

Security (SEC)

• Disallow cross-reference streams with zero-only width values (#3791)
• Avoid excessive whitespace in layout mode text extraction (#3790)

New Features (ENH)

• Implement SASLprep (RFC 4013) for AES-256 password normalization (#3780)
• CID font resource from font file to encode more characters (#3652)

Performance Improvements (PI)

• Optimize retrieval of named destinatinos in reader (#3442)

Bug Fixes (BUG)

• Fix TreeObject.insert_child KeyError on fresh children (#3786)

Robustness (ROB)

• AppearanceStream: Also honor user-set font name when not flattening annotations (#3781)

Documentation (DOC)

• Block encrypting writer in incremental mode (#3789)

Full Changelog

New Features (ENH)

• Initialise a Font from an embedded font file (#3704)

Robustness (ROB)

• Allow to fix AES padding length in non-strict mode (#3742)

Developer Experience (DEV)

• Enable PyPy testing again (#3752)
• Align mypy Makefile target with strict mode (#3690)

Full Changelog

Security (SEC)

• Do not rely on possibly invalid /Size for incremental cloning (#3735)
• Introduce limits for FlateDecode parameters and image decoding (#3734)

Full Changelog

Security (SEC)

• Limit the allowed size of xref and object streams (#3733)

Robustness (ROB)

• Consider strict mode setting for decryption errors (#3731)

Documentation (DOC)

• Use new parameter names for compress_identical_objects

Full Changelog

Security (SEC)

• Disallow custom XML entity declarations for XMP metadata (#3724)

New Features (ENH)

• Skip MD5 key derivation for AES-256 encrypted PDFs (#3694)

Bug Fixes (BUG)

• Use remove_orphans in compress_identical_objects (#3310)
• Fix PdfReadError when xref table contains comments before trailer (#3710)
• Correctly verify AES padding during decryption (#3699)
• Fix stale object cache from non-authoritative object streams (#3698)
• Fix extract_links pairing when annotations include non-links (#3687)

Documentation (DOC)

• Add AI policy (#3717)

Full Changelog

Security (SEC)

• Avoid infinite loop in read_from_stream for broken files (#3693)

Robustness (ROB)

• Resolve UnboundLocalError for xobjs in _get_image (#3684)

Full Changelog

Security (SEC)

• Improve performance and limit length of array-based content streams (#3686)

Full Changelog

New Features (ENH)

• Expose /Perms verification result on Encryption object (#3672)

Performance Improvements (PI)

• Fix O(n²) performance in NameObject read/write (#3679)
• Batch-parse all objects in ObjStm on first access (#3677)

Bug Fixes (BUG)

• Avoid sharing array-based content streams between pages (#3681)
• Avoid accessing invalid page when inserting blank page under some conditions (#3529)

Full Changelog

Security (SEC)

• Limit allowed /Length value of stream (#3675)

New Features (ENH)

• Add /IRT (in-reply-to) support for markup annotations (#3631)

Documentation (DOC)

• Avoid using PageObject.replace_contents on PdfReader (#3669)
• Document how to disable jbig2dec calls

Full Changelog

Security (SEC)

• Improve the performance of the ASCIIHexDecode filter (#3666)

Full Changelog

Security (SEC)

• Allow limiting output length for RunLengthDecode filter (#3664)

Robustness (ROB)

• Deal with invalid annotations in extract_links (#3659)

Full Changelog

Security (SEC)

• Use zlib decompression limit when retrieving XFA data (#3658)

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Security (SEC)

• Prevent infinite loop from circular xref /Prev references (#3655)

Bug Fixes (BUG)

• Fix wrong LUT size error (#3651)
• Fix handling of page boxes defined on /Pages (#3650)

Full Changelog

Security (SEC)

• Detect cyclic references when accessing TreeObject.children (#3645)
• Limit size of /ToUnicode entries (#3646)
• Limit FlateDecode recovery attempts (#3644)

Bug Fixes (BUG)

• Avoid own object replacement logic in PageObject.replace_contents (#3638)
• Fix UnboundLocalError when update_page_form_field_values with /Sig (#3634)

Robustness (ROB)

• Avoid divison by zero when decoding FlateDecode PNG prediction (#3641)

Full Changelog

Deprecations (DEP)

• Deprecate support for abbreviations in decode_stream_data (#3617)

New Features (ENH)

• Add ability to add font resources for 14 Adobe Core fonts in text widget annotations (#3624)

Bug Fixes (BUG)

• Avoid invalid load for ICCBased FlateDecode images in mode 1 (#3619)

Robustness (ROB)

• Fix AESV2 decryption when /Length missing in encrypt dict (#3629)
• Fix merging when annotations point to NullObject (#3613)
• Check for self._info being None in compress_identical_objects (#3612)

Full Changelog

Security (SEC)

• Detect cyclic references when retrieving outlines (#3610)

Full Changelog

Robustness (ROB)

• /AcroForm might be NullObject (#3601)
• Handle missing font bounding boxes gracefully (#3600)

Full Changelog

Security (SEC)

• Improve handling of partially broken PDF files (#3594)

Deprecations (DEP)

• Block common page content modifications when assigned to reader (#3582)

New Features (ENH)

• Embellishments to generated text appearance streams (#3571)

Bug Fixes (BUG)

• Do not consider multi-byte BOM-like sequences as BOMs (#3589)

Robustness (ROB)

• Avoid empty FlateDecode outputs without warning (#3579)

Documentation (DOC)

• Add outlines documentation and link it in User Guide (#3511)

Developer Experience (DEV)

• Add PyPy 3.11 to test matrix and benchmarks (#3574)

Maintenance (MAINT)

• Fix compatibility with Pillow >= 12.1.0 (#3590)

Full Changelog

New Features (ENH)

• Limit jbig2dec memory usage (#3576)
• FontDescriptor: Initiate from embedded font resource (#3551)

Robustness (ROB)

• Allow fallback to PBM files for jbig2dec without PNG support (#3567)
• Use warning instead of error for early EOD for RunLengthDecode (#3548)

Developer Experience (DEV)

• Test with macOS as well (#3401)

Full Changelog

Bug Fixes (BUG)

• Fix KeyError when flattening form field without /Font in resources (#3554)

Robustness (ROB)

• Allow deleting non-existent annotations (#3559)

Documentation (DOC)

• Fix level of attachment heading (#3560)

Full Changelog

Performance Improvements (PI)

• Optimize loop for layout mode text extraction (#3543)

Bug Fixes (BUG)

• Do not fail on choice field without /Opt key (#3540)

Documentation (DOC)

• Document possible issues with merge_page and clipping (#3546)
• Add some notes about library security (#3545)

Maintenance (MAINT)

• Use CORE_FONT_METRICS for widths where possible (#3526)

Full Changelog

Security (SEC)

• Reduce default limit for LZW decoding

New Features (ENH)

• Parse and format comb fields in text widget annotations (#3519)

Robustness (ROB)

• Silently ignore Adobe Ascii85 whitespace for suffix detection (#3528)

Full Changelog

New Features (ENH)

• Wrap and align text in flattened PDF forms (#3465)

Bug Fixes (BUG)

• Fix missing "PreventGC" when cloning (#3520)
• Preserve JPEG image quality by default (#3516)

Full Changelog

New Features (ENH)

• Add 'strict' parameter to PDFWriter (#3503)

Bug Fixes (BUG)

• PdfWriter.append fails when there are articles being None (#3509)

Documentation (DOC)

• Execute docs examples in CI (#3507)

Full Changelog

Security (SEC)

• Allow limiting size of LZWDecode streams (#3502)
• Avoid infinite loop when reading broken DCT-based inline images (#3501)

Bug Fixes (BUG)

• PageObject.scale() scales media box incorrectly (#3489)

Robustness (ROB)

• Fail with explicit exception when image mode is an empty array (#3500)

Full Changelog

Bug Fixes (BUG)

• Fix handling of zero-length StreamObject (#3485)

Robustness (ROB)

• Deal with wrong size for incremental PDF files (#3495)
• Improve handling for malformed cross-reference tables (#3483)

Developer Experience (DEV)

• Use released Python 3.14
• Use Mapping instead of dict in type hint of update_page_form_field_values (#3490)

Full Changelog

Bug Fixes (BUG)

• Insert new embedded files in a sorted manner (#3477)
• Fix name tree handling for embedded files with Kids-based inputs (#3475)
• Make embedding files not break PDF/A-3 compliance (#3472)

Documentation (DOC)

• Document AFRelationship handling for PDF/A and provide constants (#3478)

Full Changelog

New Features (ENH)

• Enhance XMP metadata handling with creation and setter methods (#3410)
• Add all font metrics for base 14 Type 1 PDF fonts (#3363)
• Allow deleting embedded files (#3461)
• Add support for Python in FIPS mode for document identifier (#3438)

Bug Fixes (BUG)

• Fix handling of UTF-16 encoded destination titles (#3463)
• Guard empty input to prevent IndexError (#3448)

Developer Experience (DEV)

• Fix type hint for XMP metadata setter to add bytes type (#3464)

Full Changelog

Security (SEC)

• Limit decompressed size for FlateDecode filter (#3430)

Deprecations (DEP)

• Drop Python 3.8 support (#3412)

New Features (ENH)

• Move BlackIs1 functionality to tiff_header (#3421)

Robustness (ROB)

• Skip Go-To actions without a destination (#3420)

Developer Experience (DEV)

• Update code style related libraries (#3414)
• Update mypy to 1.17.0 (#3413)
• Stop testing on Python 3.8 and start testing on Python 3.14 (#3411)

Maintenance (MAINT)

• Cleanup deprecations (#3424)

Full Changelog

New Features (ENH)

• Automatically preserve links in added pages (#3298)
• Allow writing/updating all properties of an embedded file (#3374)

Bug Fixes (BUG)

• Fix XMP handling dropping indirect references (#3392)

Robustness (ROB)

• Deal with DecodeParms being empty list (#3388)

Documentation (DOC)

• Document how to read and modify XMP metadata (#3383)

Full Changelog

New Features (ENH)

• Implement flattening for writer (#3312)

Bug Fixes (BUG)

• Unterminated object when using PdfWriter with incremental=True (#3345)

Robustness (ROB)

• Resolve some image extraction edge cases (#3371)
• Ignore faulty trailing newline during RLE decoding (#3355)
• Gracefully handle odd-length strings in parse_bfchar (#3348)

Developer Experience (DEV)

• Modernize license specifiers (#3338)

Maintenance (MAINT)

• Reduce max-complexity of tool.ruff.lint.mccabe (#3365)
• Refactor text extraction code

Full Changelog

Performance Improvements (PI)

• Performance optimization for LZW decoding (#3329)

Robustness (ROB)

• Flate decoding for streams with faulty tail bytes (#3332)
• dc_creator could be a Bag as well (#3333)
• Handle tree being NullObject when retrieving named destinations (#3331)

Maintenance (MAINT)

• Move inline-image mappings to constants (#3328)

Full Changelog

New Features (ENH)

• Add PDF/A XMP metadata support (#3314)

Robustness (ROB)

• Deal with annotations not being lists on merge (#3321)
• Handle NullObject for cmap encoding Differences entry (#3317)

Developer Experience (DEV)

• Update ruff to 0.12.0 (#3316)

Full Changelog

New Features (ENH)

• Add basic support for JBIG2 by using jbig2dec (#3163)

Bug Fixes (BUG)

• Fix crashes by removing unnecessary line (#3293)
• Add delimiters to NameObject.renumber_table (#3286)

Robustness (ROB)

• Handle DecodeParms being a NullObject (#3285)

Code Style (STY)

• Update to mypy 1.16.0 (#3300)

Full Changelog

New Features (ENH)

• Add support for IndirectObject.iter (#3228)
• Allow filtering by font when removing text (#3216)

Bug Fixes (BUG)

• Add missing named destinations being ByteStringObjects (#3282)
• Get font information more reliably when removing text (#3252)
• T* 2D Translation consistent with PDF 1.7 Spec (#3250)
• Add font stack to q/Q operations in layout mode (#3225)
• Avoid completely hiding image loading issues like exceeding image size limits (#3221)
• Using compress_identical_objects on transformed content duplicates differing content (#3197)
• Consider BlackIs1 parameter for CCITTFaxDecode filter (#3196)

Robustness (ROB)

• Deal with insufficient cm matrix during text extraction (#3283)
• Allow merging when annotations miss D entry (#3281)
• Fix merging documents if there are no Dests (#3280)
• Fix crash on malformed action in outline (#3278)
• Fix compression issues for removed images which might be None (#3246)
• Attempt to deal with non-rectangular FlateDecode streams (#3245)
• Handle some None values for broken PDF files (#3230)

Developer Experience (DEV)

• Multiple style improvements
• Update ruff to 0.11.0

Maintenance (MAINT)

• Conform ASCIIHexDecode implementation to specification (#3274)
• Modify comments of filters that do not use decode_parms (#3260)

Code Style (STY)

• Simplify warnings & debugging in layout mode text extraction (#3271)
• Standardize mypy assert statements (#3276)

Full Changelog

New Features (ENH)

• Add support for IndirectObject.__contains__ (#3155)

Bug Fixes (BUG)

• Fix detection of inline images followed by names or numbers (#3173)

Robustness (ROB)

• Consider root objects without catalog type as fallback (#3175)
• Raise proper error on infinite loop when reading objects (#3169)

Documentation (DOC)

• Mention memory consumption of text extraction (#3168)

Developer Experience (DEV)

• Upgrade to ruff 0.10.0 (#3191)

Full Changelog

Bug Fixes (BUG)

• Use the correct name StandardEncoding for the predefined cmap (#3156)
• Handle inline images containing EI sequences (#3152)
• Fix check box value which should be name object (#3124)
• Fix stream position on inline image fallback extraction (#3120)
• Fix object count for incremental writer (#3117)

Robustness (ROB)

• Avoid index errors on empty lines in xref table (#3162)
• Improve handling of LZW decoder table overflow (#3159)
• Ignore non-numbers for width when building font width map (#3158)
• Avoid negative seek values when reading partially broken files (#3157)

Documentation (DOC)

• Fixed PageObject.images example usage for replacing image (#3149)

Full Changelog

New Features (ENH)

• Handle attachments in /Kids and provide object-oriented API (#3108)

Bug Fixes (BUG)

• Handle annotations being None on merging (#3111)

Robustness (ROB)

• Prevent excessive layout mode text output from Type3 fonts (#3082)

Documentation (DOC)

• stefan6419846 becomes BDFL of pypdf (#3078)
• Tidy the visitor function description (#3086)

Developer Experience (DEV)

• Remove ignoring multiple Ruff rules
• Remove unused mutmut configuration (#3092)

Testing (TST)

• Fix warning assertions to use pytest.warns() (#3083)

Full Changelog

Deprecations (DEP)

• Deprecate with replacement CCITParameters (#3019)
• Correct deprecation of interiour_color (#2947)

New Features (ENH)

• Support alternative (U)F names for embedded file retrieval (#3072)
• Adding support for reading .metadata.keywords (#2939)

Bug Fixes (BUG)

• Handle further Tf operators in text extraction layout mode (#3073)
• Ensure add_metadata can deal with _info = None (#3040)
• Handle IndirectObject in CCITTFaxDecode filter (#2965)
• Handle chained colorspace for inline images when no filter is set (#3008)
• Avoid extracting inline images twice and dropping other operators (#3002)
• Fixed reference of value with str.__new__ in TextStringObject (#2952)
• Handle indirect objects in font width calculations (#2967)
• Title sometimes is bytes and not str (#2930)
• Fix undefined variable for text extraction (regression) (#2934)
• Don't close stream passed to PdfWriter.write() (#2909)

Robustness (ROB)

• Handle zero height fonts when extracting text (#3075)
• Deal with content streams not containing streams (#3005)
• Gracefully handle some text operators when the operands are missing (#3006)
• Fall back to non-Adobe Ascii85 format for missing end markers (#3007)
• Ignore odd-length strings when processing cmap lines (#3009)
• Skip annotation destination being NullObject in PdfWriter (#2964)
• Skip destination page being None in PdfWriter (#2963)
• Fix infinite loop case when reading null objects within an Array
• Fixing infinite loop in ArrayObject read_from_stream (#2928)

Documentation (DOC)

• Add note about default line colors (#3014)

Developer Experience (DEV)

• Remove ignoring Ruff rule PGH004 (#3071)
• Tidy ignore array in tool.ruff.lint (#3069)
• Move Windows CI to Python 3.13 (#3003)
• Move to Ubuntu 22.04 (#3004)

Maintenance (MAINT)

• Fix formatting of warning message and include exception message (#3076)
• Narrow return type for ContentStream.operations (#2941)

Testing (TST)

• Fix image similarity for upcoming Ubuntu 24.04 (#3039)
• Replace broken Apache Tika Corpora urls (#3041)

Code Style (STY)

• Add form feed to WHITESPACES (#3054)
• Lots of small internal changes

Full Changelog

New Features (ENH)

• Add layout_mode_font_height_weight argument to PageObject.extract_text() (#2920)

Bug Fixes (BUG)

• Fix font specificier for FreeText annotation (#2893)
• Line breaks are not generated due to incorrect calculation of text leading (#2890)
• Improve handling of spaces in text extraction (#2882)

Robustness (ROB)

• Soft failure for flate encode image mode 1 with wrong LUT size (#2900)

Documentation (DOC)

• Use latest package versions (#2907)
• Correct example of reading FileAttachment annotation (#2906)

Developer Experience (DEV)

• Update pinned requirements (#2918)
• Make make_release.py compatible with Windows environment (#2894)

Maintenance (MAINT)

• Remove references to outdated Python versions (#2919)
• Generalize the method of obtaining space_code (#2891)
• Unnecessary character mapping process (#2888)
• New LZW decoding implementation (#2887)

Testing (TST)

• Add LzwCodec for encoding (#2883)

Code Style (STY)

• Capitalize error messages (#2903)
• Modify error messages in PdfWriter (#2902)

Full Changelog

New Features (ENH)

• Add full parameter to PdfWriter constructor (#2865)

Bug Fixes (BUG)

• Update pyproject.toml with minimum Python version of 3.8 (#2859)
• Cope with unbalanced delimiters in dictionary object (#2878)
• Cope with encoding with too many differences (#2873)
• Missing spaces in extract_text() method (#1328) (#2868)
• Tolerate truncated files and no warning when jumping startxref (#2855)

Robustness (ROB)

• Repair PDF with invalid Root object (#2880)
• Continue parsing dictionary object when error is detected (#2872)
• Merge documents with invalid pages in named destinations (#2857)
• Tolerate comments in arrays (#2856)

Developer Experience (DEV)

• Use latest Python version for benchmarking (#2879)

Maintenance (MAINT)

• Add tests to source distributions (#2874)
• Refactor _update_field_annotation (#2862)

Full Changelog

This version drops support for Python 3.7 (not maintained since July 2023), PdfMerger (use PdfWriter instead) and AnnotationBuilder (use annotations instead).

Deprecations (DEP)

• Remove the deprecated PdfMerger and AnnotationBuilder classes and other deprecations cleanup (#2813)
• Drop Python 3.7 support (#2793)

New Features (ENH)

• Add capability to remove /Info from PDF (#2820)
• Add incremental capability to PdfWriter (#2811)
• Add UniGB-UTF16 encodings (#2819)
• Accept utf strings for metadata (#2802)
• Report PdfReadError instead of RecursionError (#2800)
• Compress PDF files merging identical objects (#2795)

Bug Fixes (BUG)

• Fix sheared image (#2801)

Robustness (ROB)

• Robustify .set_data() (#2821)
• Raise PdfReadError when missing /Root in trailer (#2808)
• Fix extract_text() issues on damaged PDFs (#2760)
• Handle images with empty data when processing an image from bytes (#2786)

Developer Experience (DEV)

• Fix coverage uploads (#2832)
• Test against Python 3.13 (#2776)

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Bug Fixes (BUG)

• Cope with Matrix entry in field annotations (#2736)

Robustness (ROB)

• Cope with fields with upside down box/rectangle (#2729)

Maintenance (MAINT)

• Add deprecate_with_replacement to StreamObject.initializeFromD… (#2728)
• Deal with cryptography>=43 moving ARC4 (#2765)

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