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6
Latest Version
Avg Release Cycle
356 days
Latest Release
82 days ago

Changelog History

  • v0.1.14 Changes

    March 22, 2026

    🚀 Auto generated release notes

    • Increment version to 0.1.14 by @BobLd in #1231
    • Introduce StackDepthGuard class to check for stack depth in CoreTokenScanner and fix #1217 by @BobLd in #1220
    • ➕ Add Links to Pdf Generation by @ochsnerd in #1232
    • ✅ Make LinkAnnotation internal to fix unit tests by @BobLd in #1239
    • Only throw if ArrayToken length is lesss than 4 in ToRectangle() and fix #1238 by @BobLd in #1240
    • 🖐 Handle empty encoding in Type1FontSimple and fix #1248 by @BobLd in #1249
    • 👉 Make extended graphics states stacked too by @PsykerUdot in #1246
    • both Tj and TJ operators should increment text sequence #1241 by @EliotJones in #1251
    • 👌 Improve HasFormXObjectCircularReference and fix #1250 by @BobLd in #1252
    • 🚀 replace release flow single job with pr process by @EliotJones in #1253
    • ➕ Add UglyToad.PdfPig.Benchmarks and misc performance improvements by @BobLd in #1255
    • 👉 Make LinkAnnotation public by @BobLd in #1256
    • ⏪ revert flate decode handling to more lenient processing by @EliotJones in #1254
    • 🛠 Fix Benchmarks solution and add BruteForceBenchmarks by @BobLd in #1260
    • ➕ Additional digital corpora testing by @EliotJones in #1261
    • Introduce IBlock and ILettersBlock interfaces (Round 2) by @davebrokit in #1263
    • 👌 Improve SystemFontFinder performance and add benchmarks by @BobLd in #1264
    • For shading types 4 to 7, add Data property containing descriptive data characterizing the shading's gradient fill by @BobLd in #1267
    • creating branch in the previous step conflicts by @EliotJones in #1269
    • 🚀 change the release flow to work on tags by @EliotJones in #1271

    🆕 New Contributors

    Full Changelog : 0.1.13...v0.1.14

  • v0.1.13 Changes

    December 23, 2025

    What's Changed

    • Increment version to 0.1.13 by @BobLd in #1207
    • Simply order by offset also when not doing brute force to fix #1208 by @BobLd in #1210
    • Ensure no key end up missing in ResolveInternal and fix #1209 by @BobLd in #1211
    • 🚀 update release logic to check out master before commit by @EliotJones in #1212
    • Return empty glyph in ReadCompositeGlyph when glyphIndex is out of range and fix #1213 by @BobLd in #1215
    • Handling of optional content group names without proper name by @carlokok in #1216
    • 📜 Minor Type1FontParser optimisations by @BobLd in #1221
    • 👉 Use file header offset when doing brute force find and fix #1223 by @BobLd in #1224
    • Do not return glyph bbox and path in Type1Font if character name is '.notdef' by @BobLd in #1229

    🆕 New Contributors

    Full Changelog : v0.1.12...unreleased

  • v0.1.12 Changes

    November 13, 2025

    What's Changed

    • ➕ add nullability to core project by @EliotJones in #1111
    • 🛠 Fix usage of List.Contains by @theolivenbaum in #1112
    • 👍 allow missing catalog type definition for catalog dictionary by @EliotJones in #1113
    • 🐎 Performance improvements and .Net 9 support by @chuckbeasley in #1116
    • Update run_integration_tests.yml by @BobLd in #1117
    • ➕ Add global.json in tools by @BobLd in #1118
    • Update run_integration_tests.yml by @BobLd in #1119
    • Update run_integration_tests.yml by @BobLd in #1120
    • Update run_common_crawl_tests.yml by @BobLd in #1121
    • 🚀 Update nightly_release.yml by @BobLd in #1123
    • Increase FlateFilter multiplier when preventing malicious OOM and fix #1125 by @BobLd in #1126
    • Update build_and_test_macos.yml by @BobLd in #1129
    • Update build_and_test_macos.yml by @BobLd in #1130
    • 📜 Prevent StackOverflow in ParseTrailer and fix #1122 by @BobLd in #1127
    • 📜 Lower max search depth in preventing StackOverflow in ParseTrailer by @BobLd in #1131
    • ➕ add container node support for BookmarksProvider.cs by @migeyusu in #1133
    • 🚚 move file parsing to single-pass static methods by @EliotJones in #1102
    • ➕ Add early version of IOSSystemFontLister by @BobLd in #1143
    • File buffering read stream investigation by @EliotJones in #1140
    • 🚀 Draft release on master build by @EliotJones in #1145
    • 👀 First create the StreamInputBytes in PdfDocument.Open() to check the stream CanRead and CanSeek by @BobLd in #1147
    • 🛠 Fix font matrix issues by @BobLd in #1150
    • 🚚 Properly fix #1148 by always parsing optional tables in TrueTypeFontParser and remove Type 0 font hack by @BobLd in #1151
    • 📜 copy other parser behavior by treating end of stream as valid end inline image by @EliotJones in #1152
    • ➕ add test jobs for common crawl 0000 to 0007 by @EliotJones in #1153
    • 🖐 handle case where xobjects use same key as fonts by @EliotJones in #1154
    • read last line of ignore file by @EliotJones in #1155
    • 👉 Use correct font matrix when transforming the width in Type 0 font and fix #1156 by @BobLd in #1157
    • ➕ Add initial support to process CFF fonts contained inside a TrueType font by @BobLd in #1159
    • 👀 Handle non seekable stream by copying it into a memory stream and fix #1146 by @BobLd in #1158
    • 🖐 handle case where offsets are out of range by @EliotJones in #1160
    • 👉 Use record struct in FileHeaderOffset by @BobLd in #1161
    • 🔦 Expose letter's font via GetFont(), make Font property as obsolete and use FontDetails instead by @BobLd in #1166
    • ➕ Add GetDescent() and GetAscent() to IFont and loose bounding box to letter by @BobLd in #1167
    • 👉 Use pageFactoryCache.Clear() in Pages dispose and fix #1170 by @BobLd in #1174
    • 🛠 Bugfix: xref-streams were not added by @ricflams in #1173
    • Guard against circular references in XRef tables/streams by @ricflams in #1175
    • ➕ Add more tests to NearestNeighbourWordExtractorTests by @BobLd in #1180
    • 🔋 Feature/improve group indexes by @BobLd in #1181
    • Trim excess in long lived font collections by @BobLd in #1184
    • 👀 Set Type 3 font ascent to Top instead of Height, see #1164 by @BobLd in #1185
    • 🚚 Only apply RemoveStridePadding() when bytes per pixel is one and fix #1183 by @BobLd in #1187
    • 👉 Use zlib decode to properly use window size and checksum in flate filter by @rhuijben in #1186
    • 👀 Avoid doing a true file seek for simple peeking in the token parser by @rhuijben in #1188
    • 🛠 Fix regression introduced in 3592fc8 where slicing the stream to the length breaks decoding by @BobLd in #1192
    • ⚡️ Update NameToUnicodeConvertAglSpecification to test what was intended by @rhuijben in #1191
    • ➕ Add CMap caching at document level and add MurmurHash3 hashing function by @BobLd in #1193
    • 👀 Avoid reading ahead and then seeking back by @rhuijben in #1189
    • Do not slice the stream to the length breaks decoding in FlateDecode by @BobLd in #1194
    • 🚀 Update test run command to use Release configuration by @BobLd in #1195
    • 👉 Make geometric transforms consistent with PDF specification by @PsykerUdot in #1198
    • Check for index out of range in GlyphDataTable.ReadFlags() and fix #1199 by @BobLd in #1201
    • Check for array size before slice in ColorSpaceDetailsByteConverter.Convert() by @BobLd in #1202
    • 🐛 Bugs/revert e11dc6b by @BobLd in #1203

    🆕 New Contributors

    Full Changelog : v0.1.11...v0.1.12

  • v0.1.11 Changes

    July 26, 2025

    Welcome to version 0.1.11. The changes in this version have mainly focused on stability. There is a breaking API change.

    🚀 We have also started to run tests against a larger corpus of documents from Common Crawl allowing us to find bugs and malformed files proactively. This release is screened against 6000 additional files.

    • 👌 Improvements to content and font parsing detected by fuzzing inputs.
    • 👌 Improvements and resiliency for finding the startxref location when parsing a file..
    • ➕ Adds build and tests for Mac OS as well as retrieving system fonts on iPad (Mac Catalyst).
    • 👌 Support clipping when rendering XObjects.
    • Prevent malformed files leading to an out-of-memory when decompressing streams.
    • 👉 Make IGraphicsStateOperationFactory and ReflectionGraphicsStateOperationFactory public.
    • 👍 Softmask support for images.
    • 🐎 Performance improvements using Span and ReadOnlyMemory where available.
    • 🖐 Handle corrupt files where the stream contains comment tokens.
    • 👌 Improvements to copying from existing files when using PdfDocumentBuilder, fixes some bugs with copying fonts and dictionary tokens referenced indirectly.
    • 🖐 Handle corrupt files with double endstream definitions.
    • 📜 More tolerant parsing for a number of invalid PDFs, including invalid USC2 input, CMAP formats, CFF fonts, missing font subtypes, invalid xref table positions, missing /FirstChar entry for font dictionaries and corrupt ASCII 85 encoded data.
    • 🛠 Fix an issue where adding content to an existing PDF using PdfDocumentBuilder could result in upside-down or wrongly positioned text due to global transforms in the source PDF.
    • 🆕 New option to completely skip annotations when building a document.
    • Prevent infinite loops in certain documents #1096.
    • 👌 Improved performance when tokenizing numbers, this should provide a minor speed improvement.
    • When adding a page from an existing PDF to a PdfDocumentBuilder any external link annotations should be preserved.

    💥 Breaking changes

    The method on PdfDocumentBuilder:

    public PdfPageBuilder AddPage(PdfDocument document, int pageNumber, Func<PdfAction, PdfAction?>? copyLink)

    👍 Has been changed to wrap the copyLink parameter in an options object to support the KeepAnnotations option:

    public PdfPageBuilder AddPage(PdfDocument document, int pageNumber, AddPageOptions options)

    You can just set the CopyLinkFunc property in the options object if you need to access this functionality.

    🌲 Auto generated change log

    • ⬆️ Bump version to 0.1.11-alpha001 by @BobLd in #1009
    • 👌 Improve Jpeg2000Helper to support J2K codec and add test by @BobLd in #1010
    • ➕ Add SetStrokeDetails() and SetFillDetails() to PdfPath and tidy up ContentStreamProcessor by @BobLd in #1014
    • Implement clipping in ProcessFormXObject() by @BobLd in #1015
    • 🛠 Fix #1017 by @lofcz in #1018
    • 🛠 Fix PatternColor Equals() method and fix #1016 by @BobLd in #1019
    • 🔋 Feature/image mask by @BobLd in #1012
    • ⚡️ Update README.md by @BobLd in #1020
    • 🛠 Fix bug where FormXObject bbox needs to be normalised by @BobLd in #1021
    • ➕ Add MacOS test pipeline and fix failing tests by @BobLd in #1025
    • ⚡️ Update README.md by @BobLd in #1026
    • Seal PdfSubpath class and IPathCommand implementations, fix Close.GetHashCode() and fix #1027 by @BobLd in #1029
    • 🛠 Fix issue #1013 by @BobLd in #1031
    • ➕ Add support for MacCatalyst in SystemFontFinder by @BobLd in #1033
    • 📜 Make sure the value of the ImageMask / Im token is check in ColorSpaceDetailsParser by @BobLd in #1038
    • ➕ Add early support for Stencil masking, rename SoftMaskImage property into MaskImage and make sure IsInlineImage is true for InlineImage by @BobLd in #1039
    • 🛠 Bugfix and optimize GetStartXrefPosition by @ricflams in #1036
    • 🛠 Fix bug introduced in #1039 by @BobLd in #1041
    • Try to repair xref offset by looking for all startxref and fix #1040 by @BobLd in #1044
    • ➕ Add test to ensure #822 is fixed by @BobLd in #1045
    • 🖐 Handle TrueType case in CidFontFactory where the font is CFF by @BobLd in #1046
    • Issues/1048 by @BobLd in #1049
    • Check for infinite recursion in ObjectLocationProvider.TryGetOffset() and fix #1050 by @BobLd in #1051
    • 👌 Improve IFilter memory allocation by @BobLd in #1052
    • 🔨 Modernise PngPredictor and refactor LzwFilter and FlateFilter to reduce memory allocation by @BobLd in #1053
    • Do not throw if the Mask dictionary contains a ColorSpace key by @BobLd in #1055
    • 👉 Make the Diacritics class public for use in external StreamProcessors by @BobLd in #1056
    • ➕ Add extension method to get Memory from MemoryStream, attempting to do it without allocation and update CMapParser by @BobLd in #1057
    • Miscellaneous minor changes by @BobLd in #1058
    • ⚡️ Optimize internal representation of IndirectReference by @BobLd in #1059
    • Skip creating IndirectReference in CrossReferenceTablePartBuilder when generationNumber is more than 65,535 by @BobLd in #1060
    • Check ColorSpace token as dictionary and fix issue #1061 by @BobLd in #1063
    • 📜 Make classes related to page content parsing public by @BobLd in #1065
    • Prevent RunLengthFilter malicious OOM by @BobLd in #1068
    • 🚚 Use ReadOnlyMemory in ShowText operators and implement MoveToNextLineShowTextWithSpacing parsing by @BobLd in #1066
    • 🛠 Fix bug in PngFromPdfImageFactory where softmask is wrongly referenced. by @orrest in #1069
    • 🛠 Fix issue 926 by @EliotJones in #1072
    • writer util did not follow reference links #1032 by @EliotJones in #1073
    • 🛠 fix #670 by ignoring duplicate endstream definitions by @EliotJones in #1075
    • skip single letter final blocks by @EliotJones in #1076
    • 🛠 fix copying of sub-dictionary when keys collide by @EliotJones in #1077
    • 👉 use correct bounding boxes for standard 14 glyphs #850 by @EliotJones in #1080
    • back-calculate first char if last char and widths present by @EliotJones in #1081
    • 🛠 fix off-by-one and optimize brute force xref search #1078 by @EliotJones in #1079
    • fall back to times-roman as standard 14 font when lenient by @EliotJones in #1085
    • 👍 allow reading to continue if encountering an invalid surrogate pair by @EliotJones in #1084
    • 🛠 fix colorspace error when form xobject contains a transparency group by @EliotJones in #1088
    • 👌 support bfrange having incorrect length in a cmap by @EliotJones in #1089
    • ➕ add new action to run integration against common crawl corpus by @EliotJones in #1090
    • Update run_common_crawl_tests.yml by @BobLd in #1091
    • ✂ Remove decode parameter application from Stencil color space for consistency by @BobLd in #1092
    • ⚡️ Update hack for 1bpc + DeviceGray by @BobLd in #1093
    • when writing content to an existing page inverse any global transform #614 by @EliotJones in #1094
    • ➕ add option to strip annotation by @EnraH in #492
    • check for cycles during indirect reference resolution by @jan-sutter in #1097
    • ⚡️ i merged a pr which broke the build, this updates the build to work by @EliotJones in #1099
    • ✂ remove debug asserts causing test failures by @EliotJones in #1098
    • ✅ Track IndirectReference instead of only ObjectNumber when checking for cycles during indirect reference resolution and add test by @BobLd in #1101
    • 🚚 move last uncovered operators to switch statement by @EliotJones in #1100
    • rework numeric tokenizer hot path by @EliotJones in #1104
    • 👉 make link copying more tolerant when adding page by @EliotJones in #1103
    • 🖐 handle additional broken pdf files in the common crawl set by @EliotJones in #1108
    • ⚡️ update readme to avoid people using page.Text or asking about editing docs by @EliotJones in #110...

  • v0.1.10 Changes

    March 08, 2025

    What's Changed

    • 🛠 Fix GetTextOrientation by cleanly checking if rotation is divisible by 90 and fix #913 by @BobLd in #914
    • ➕ Add early version of BrowserSystemFontLister by @BobLd in #920
    • ✂ Remove list from FileTrailerParser.GetStartXrefPosition() by @BobLd in #922
    • Reorganise Filters and make them public by @BobLd in #925
    • 👌 Support decrypting V4/R4 files with AESV2 and no Length property by @Greybird in #924
    • 👉 Use pdfScanner in ReadVerticalDisplacements and fix #693 and return 0… by @BobLd in #928
    • 0️⃣ Default page number to 0 in ExplicitDestination when the Dest has no page number and fix #736 by @BobLd in #930
    • 🚚 Move Paths, GetAnnotations() and GetOptionalContents() outside of ExperimentalAccess and mark Experimental class and reference as obsolete by @BobLd in #931
    • ⬆️ Upgrade tests project NuGet packages by @BobLd in #932
    • ⚡️ Optimize cross reference object offset validation by avoiding nested loop by @madelson in #935
    • Revive trimming/AOT analysis by @madelson in #939
    • ⚠ Stop treating Warnings as Errors by @BobLd in #941
    • 🖐 Handle alternate Unicode name representation cXXX and fix #943 by @BobLd in #944
    • 🖐 Handle odd ligatures names and fix #945 by @BobLd in #946
    • ⚡️ Update additional glyph list to latest from PDFBox by @BobLd in #948
    • 🆕 New GetText() option: NegativeGapAsWhitespace by @Kizaemon in #952
    • 🛠 Fix for IndexOutOfRangeException exception by @GrabzIt in #955
    • 🛠 Fix "Nightly Release" pipeline following csproj changes by @BobLd in #957
    • 📜 Do not throw exception when lenient parsing in ON in CrossReferenceParser and fix #959 by @BobLd in #961
    • 👌 Improve UnwrapIndexedColorSpaceBytes by @BobLd in #962
    • 🛠 Fix out of range exception in AnnotationProvider by @BobLd in #963
    • Return a copy of the ArrayPoolBufferWriter buffer in Ascii85, AsciiHex and RunLength filters and fix #964 by @BobLd in #965
    • 👉 Make ColorSpaceDetails.BaseNumberOfColorComponents public to allow for external image factories by @BobLd in #966
    • 👌 Improve GlyphList by @BobLd in #967
    • ✅ Properly handle ZapfDingbats font for TrueTypeSimpleFont and add tests by @BobLd in #969
    • 🚚 Execute RemoveStridePadding in place when possible by @BobLd in #968
    • ➕ Add HexToken case in OptionalContent parsing by @simonedd in #971
    • ⚡️ Update UglyToad.PdfPig.ConsoleRunner target framework to net8 by @BobLd in #972
    • Do not throw error on Pop when stack size is 1 in lenient mode and fix #973 by @BobLd in #974
    • 🛠 Fix warnings about "type 'K' cannot be used as type parameter 'TKey' in the generic type or method 'Dictionary<TKey, TValue>'" by @BobLd in #976
    • 🔨 Refactor XObjectFactory by @BobLd in #977
    • ⚡️ Update UnpackComponents() to account for 1bpc + DeviceGray (hack for Jbig2) by @BobLd in #978
    • CcittFaxDecodeFilter: do not check for input length, invert bitmap with ref byte and fix #982 by @BobLd in #983
    • ➕ Add JPX bits per component decoding by @BobLd in #986
    • Issues/987 by @BobLd in #990
    • 👉 Make DecodeParameterResolver class public by @BobLd in #993
    • ⚡️ Update Microsoft and SkiaSharp NuGet packages by @BobLd in #994
    • ⚡️ Update Microsoft NuGet packages for UglyToad.PdfPig.Package by @BobLd in #996
    • Resolve image data (implementation from @kasperdaff) by @BobLd in #998
    • Pass IFilterProvider to IFilter.Decode() and handle null in PdfExtensions.Resolve() by @BobLd in #999
    • 👌 Improve GetExtendedGraphicsStateDictionary() and StackDictionary.TryGetValue() by @BobLd in #1004
    • 👍 Better handle integer overflow in DocstrumBoundingBoxes by @BobLd in #1005
    • 🔖 version 0.1.10 by @BobLd in #1006
    • Update run_integration_tests.yml by @BobLd in #1007

    🆕 New Contributors

    Full Changelog : v0.1.9...v0.1.10

  • v0.1.5 Changes

    May 09, 2021

    🛠 Some more bug-fixes:

    • 🛠 Fix for object streams in files which require brute force searching.
    • 🖐 Handle NullToken presence when creating documents.
    • 👌 Support for PDFs where the filters are defined as indirect references (against specification).
    • 👌 Support for CMYK when generating PNG images from IPdfImage.
    • 👌 Support for indexed ColorSpaces where palette is stored in a string.
    • 🖐 Handle UTF16 strings in encrypted document dictionaries.
    • 📇 Handle documents with a XMP metadata stream instead of an information dictionary.
    • 👍 CCITTFaxDecode filter support.
    • 0️⃣ Tweaks to DefaultWordExtractor to try and detect word gap size based on preceding text instead of a global gap threshold.

    0️⃣ Note that changes to DefaultWordExtractor may change the output of calls to Page.GetWords() in this version.