NuGet · #1827 most downloaded on NuGet

IronSoftware.System.Drawing

2026.8.220M downloads/moiron-software/IronSoftware.Drawing.Common ↗New releases in your daily digest, changelog included.

IronSoftware.System.Drawing - The C# Image Library A universally compatible Bitmap format for .NET 8, .NET 7, .NET 6, and .NET 5, .NET Core on Windows, macOS, Linux, Docker, AWS, Azure, NanoServer, IIS, Mobile, Xamarin, iOS, Android, and Google Compute. Works seamlessly with popular Image and Bitmap formats such as System.Drawing.Bitmap, SkiaSharp, SixLabors.ImageSharp, Microsoft.Maui.Graphics. Implicit casting means that using this class to input and output Bitmap and image types from public API's gives full compatibility to all image type fully supported by Microsoft. Key library features include: * AnyBitmap: A universally compatible Bitmap class. Implicit casting between System.Drawing.Bitmap, System.Drawing.Image, SkiaSharp.SKBitmap, SkiaSharp.SKImage, SixLabors.ImageSharp, Microsoft.Maui.Graphics.Platform.PlatformImage to IronSoftware.Drawing.AnyBitmap * Color: A universally compatible Color class. Implicit casting between System.Drawing.Color, SkiaSharp.SKColor, SixLabors.ImageSharp.Color, SixLabors.ImageSharp.PixelFormats to IronSoftware.Drawing.Color * Rectangle: A universally compatible Rectangle class. Implicit casting between System.Drawing.Rectangle, SkiaSharp.SKRect, SkiaSharp.SKRectI, SixLabors.ImageSharp.Rectangle to IronSoftware.Drawing.Rectangle * Font: A universally compatible Font class. Implicit casting between System.Drawing.Font, SkiaSharp.SKFont, SixLabors.Fonts.Font to IronSoftware.Drawing.Font * Point: A universally compatible Point class. Implicit casting between System.Drawing.Point, SixLabors.ImageSharp.Point, SkiaSharp.SKPointI to IronSoftware.Drawing.Point * Size: A universally compatible Size class. Implicit casting between System.Drawing.Size, SixLabors.ImageSharp.Size, SkiaSharp.SKSizeI to IronSoftware.Drawing.Size IronSoftware.Drawing can be used within C#, VB.NET, F#, ASP.NET projects, MVC, Web Services, Console & Desktop Applications. Supports: * .NET 9 * .NET 8 * .NET 7 * .NET 6 * .NET 5 * .NET Core 2.0 + * .NET Framework 4.6.2 + For general support and technical inquiries, please email us at: support@ironsoftware.com

Last release 2 months ago
31 Jul 2026
Release timing varies
gaps range from 3 weeks to 5 months
Rarely documented
notes for 10 of 41 stable releases
2 versions withdrawn
withdrawn after publishing
127 years old
44 releases · first in 1900

Release timeline

44 releases since 1900

Releases

2026.8.231 Jul 2026
Added support for loading TIFF and BigTIFF files larger than 2 GB using a streaming loader, enabling page-by-page decoding without loading the entire
Features

Added support for loading TIFF and BigTIFF files larger than 2 GB using a streaming loader, enabling page-by-page decoding without loading the entire file into memory Enhancements

AnyBitmap now preserves the original source color depth (BitsPerPixel) across derived operations, including frame extraction, cloning, rotation, redaction, and resizing Bug Fixes

Fixed an issue where derived AnyBitmap operations incorrectly reported a decoded 32bpp color depth instead of the original source pixel depth
Additional notes
Changes:

00d8a35 update(DW-39): Fix FromTiffFile preserving original TIFF bits-per-pixel metadata

cdef662 update nuspec for August Release

25b57b1 Merge pull request #154 from iron-software/DW-40-carry-original-bpp-through-derived-apis

4c66813 DW-40: preserve multi-page frames on resize, carry per-frame depth in Clone, add Image/originalBpp ctor, clarify Redact rationale

41ff5a0 DW-40: carry original BitsPerPixel through GetAllFrames/Clone/RotateFlip/Redact and preserve depth on resize

717a5df Merge pull request #152 from iron-software/releases/2026.7

ffbc30f Merge pull request #151 from iron-software/DW-39-support-large-tiff-streaming

ec97898 update(DW-39): fix streamed-TIFF byte/format divergence and >32767-page loop from PR review

d5f150d update nuspec

d7c1983 Merge pull request #149 from iron-software/DW-9-load-image-using-original-bpp

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ac7846d Merge pull request #150 from iron-software/PDF-2231-tomultipagetiffstream-mixed-orientation

7ae4ac7 update(DW-9): Address PR Review Feedbacks

7298ac0 DW-39: Add Support for large tiff streaming

9abef96 update(PDF-2231): Address PR Review Feedbacks

6c3a9c9 Fixed corruption of true 3-byte Rgb24 input

85fdaf0 Fixed resolution unit-conversion bug

05a1614 PDF-2231: Fixed Multi Page TIFF Mixed Orientation

2cae046 DW-9: Support for load image with original bpp

3600025 Merge pull request #148 from iron-software/ocr-372-alt

This list of changes was auto generated.

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19002026

One column per quarter.

2026.7.226 Jun 2026

Added support for creating multi-page TIFFs while preserving per-page dimensions, orientation, and resolution Enhancements

Features

Added support for creating multi-page TIFFs while preserving per-page dimensions, orientation, and resolution Enhancements
Added support for converting AnyBitmap images to 8, 24, or 32 bits per pixel Bug Fixes
Fixed an issue where AnyBitmap.BitsPerPixel reported incorrect color depths for TIFF images
Fixed issues affecting multi-page TIFF generation, including incorrect resolution metadata and corrupted output for certain RGB image formats

Additional notes

Changes:

d5f150d update nuspec
d7c1983 Merge pull request #149 from iron-software/DW-9-load-image-using-original-bpp
ac7846d Merge pull request #150 from iron-software/PDF-2231-tomultipagetiffstream-mixed-orientation
7ae4ac7 update(DW-9): Address PR Review Feedbacks
9abef96 update(PDF-2231): Address PR Review Feedbacks
6c3a9c9 Fixed corruption of true 3-byte Rgb24 input
85fdaf0 Fixed resolution unit-conversion bug
05a1614 PDF-2231: Fixed Multi Page TIFF Mixed Orientation
2cae046 DW-9: Support for load image with original bpp
3600025 Merge pull request #148 from iron-software/ocr-372-alt

This list of changes was auto generated.

Open source →

2026.4.124 Mar 2026

Removed explicit System.Memory dependency to resolve .NET Framework assembly version conflict.

Removed explicit System.Memory dependency to resolve .NET Framework assembly version conflict.

Additional notes

Changes:

bc2a3a2 update nuspec release notes for System.Memory removal
f481cee removing system.memory packagereference
535fb85 Removing "System.Memory" depedency
1b31c88 Merge branch 'develop' into ocr-372-alt
d265305 Merge pull request #146 from iron-software/releases/2026.1
288276d Updating system.memory
f8576b4 Merge pull request #144 from iron-software/releases/2025.9
837de64 Merge pull request #140 from iron-software/releases/2025.8
d099a44 Merge pull request #138 from iron-software/releases/2025.7
5872fe9 Merge pull request #135 from iron-software/develop

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4b1ac8c Merge pull request #128 from iron-software/develop
b5c447d Merge pull request #122 from iron-software/releases/2024.12

This list of changes was auto generated.

Open source →

2026.1.25 Feb 2026

Updates IronSoftware.Drawing.Abstractions to 2026.1.2.

Updates IronSoftware.Drawing.Abstractions to 2026.1.2.
Updates SixLabors.ImageSharp to 2.1.13 (netstandard2.0) and 3.1.12 (net6.0).

Additional notes

Changes:

9ac492a deps: update to new signed version v2026.1.2

This list of changes was auto generated.

Open source →

2025.9.32 Sept 2025

Optimizes AnyBitmap memory usage.

Optimizes AnyBitmap memory usage. - Updates Color.FromName to align with System.Drawing. - Adds support for RebeccaPurple color.

Additional notes

Changes:

3212791 hotfix AnyBitmap.Clone(Rectangle rectangle) Binary was not updated
1bdc471 Merge pull request #142 from iron-software/hotfix-LoadAndResizeImage-image-disposed
c57451e remove invalid using statement when init _lazyImage
c7a029f Update release notes
2733819 Merge pull request #136 from iron-software/DW-34-lazy-load-anybitmap
42dfdf6 Merge pull request #141 from iron-software/DW-35-Align-Color-FromName-With-SystemDrawing
248e645 fixed image loaded while Disposing
92121be Merge pull request #139 from iron-software/releases/2025.8
85c2ec5 DW-35: Fix IsKnownColor Issue
b1e1340 improve readability

See More

7c823bf fix tryWithLibTiff logic
9266321 remove unused LoadTest1()
a390fc6 make GetTiffFrameCountFast also count Thumbnail since ImageSharp cannot open tiff is it have Thumbnail
347fa9f optimize (WIP)
4c55ed7 use _lazyImage?
44dcbb4 Binary Thread Safety
09e572f [DW-34] optimize ImageSharp casting
11dae53 cache frameCount
8138e4e DW-35: Align Color FromName with System.Drawing
01218bb Update SixLabors dependencies
9cf0b8d Merge pull request #137 from iron-software/releases/2025.7
3b1e95e disable LoadTest1
69c3279 catch Width Height BitsPerPixel value for faster operation
0e6400d cd: using AzureSignTool and NuGetSignTool to sign
9e328e4 fix export gif and add tests
ff49954 [DW-34] always use BmpEncoder
2a8617d [DW-34] optimize InternalLoadTiff
f4553a1 optimize RotateFlip, Redact and remove OpenGifToImageSharp
aa9642e [DW-34] fix GetRGBABuffer and add TestGetRGBABuffer
36a8617 [DW-34] use IEnumerable
b649c06 Rolling back SixLabors ImageSharp
fb2b8d2 [DW-34] add GetRGBABuffer
1604c4f [DW-34] also lazy load Binary
5d4086d [DW-34] optimize GetRGBBuffer by not cast Pixel to Color
9b74625 reduce iteration of DW_34_ShouldNotThrowOutOfMemory
7d6dbc2 [DW-34] add dynamic treshold (.net6+)
3653403 add DW_34_ShouldNotThrowOutOfMemory
0e127c4 [DW-34] optimize OpenTiffToImageSharp
2d2f799 implement lazyload and overhaul Tiff
c3feb6c fix some ImageSharp color casting
d6ab0c3 Add .NET 9.0 Support
c190a16 Update dependencies and release notes
03d0a97 Merge pull request #134 from iron-software/releases/2025.6
ce0a70f Update EULA.txt
0cf5bf4 Overloads AnyBitmap constructors and From methods
d84fd0c Update release notes
5e89cee Update SixLabors.ImageSharp version
419155e Merge pull request #132 from iron-software/DW-33-add-load-input-image-as-Rgba32
30b3e45 Merge pull request #133 from iron-software/releases/2025.5
2f3184e Update SixLabors.ImageSharp packages for net60 target
53c7641 Intellisense grammar correction
ce2a3f5 Fix if the input image is auto-rotated from SixLabor.ImageSharp.Load()
ed4ea02 add private global bool called PreserveOriginalFormat
56cd3eb Load directly and fix typos
e3221e9 Add preserveOriginalFormat bool while loading image
ace14e7 Disable warning messages from BitMiracle.LibTiff.NET
3779a0d Update release notes
f91e948 Second attempted to fix the unit test issue
59b7d7a Attempted to fix deployment issue in unit test for Linux
1ade516 PR: Install GDI+ dependencies on Ubuntu agent before execute tests
551dd9b Update dependencies and nuspec file
06d836c Merge pull request #130 from iron-software/releases/2025.3

This list of changes was auto generated.

Open source →

2025.8.113 Aug 2025

- Updates internal dependencies.

Updates internal dependencies.

2025.7.1216 Jul 2025

- Updates internal dependencies.

Updates internal dependencies.

2025.6.23 Jun 2025

Fixes the issue of some images are auto-rotated when loading as AnyBitmap.

Updates internal dependencies.
- Fixes the issue of some images are auto-rotated when loading as AnyBitmap.
- Adds an option called preserveOriginalFormat to download input image as Rgba32 via AnyBitmap.

2025.5.313 May 2025

Disable warning messages from BitMiracle.LibTiff.NET.

Updates internal dependencies.
- Disable warning messages from BitMiracle.LibTiff.NET.

2025.3.613 Mar 2025

Fixes incorrect HorizontalResolution and VerticalResolution of AnyBitmap images.

Fixes incorrect HorizontalResolution and VerticalResolution of AnyBitmap images. - Improves library's internal functionality and performance.

2025.3.55 Mar 2025