itext/itext-java

📦 Other Stuff

• Don’t forget that in addition to the resources on our Knowledge Base, on our [GitHub](https://github.com/itext/) you can find a ton of useful up-to-date samples in the following repos:
• Java
• [https://github.com/itext/itext-publications-examples-java](https://github.com/itext/itext-publications-examples-java)
• [https://github.com/itext/itext-publications-book-java](https://github.com/itext/itext-publications-book-java)
• [https://github.com/itext/itext-publications-signing-examples-java](https://github.com/itext/itext-publications-signing-examples-java)
• [https://github.com/itext/itext-publications-signatures-java](https://github.com/itext/itext-publications-signatures-java)
• [https://github.com/itext/itext-publications-highlevel-java](https://github.com/itext/itext-publications-highlevel-java)
• [https://github.com/itext/itext-publications-jumpstart-java](https://github.com/itext/itext-publications-jumpstart-java)
• + 3 more

✨ New Features

• DEVSIX-9361 – Easily create WTPDF
• DEVSIX-9364 – Perform Color Contrast checks for PDF/UA
• DEVSIX-9626 – Create an implementation for non-EU trusted lists processing

📦 Improvements

• DEVSIX-9675 – Online data retrieval customization during signature validation
• DEVSIX-9727 – Certificate chain building must take multiple CA candidates into account
• DEVSIX-9746 – CertificateChainValidator must check name constraint
• DEVSIX-9719 – PdfLayers are always on when reopening document and accessing them through pdfPage.getLayers()

🐛 Bug Fixes

• DEVSIX-9678 – Unexpected behavior of MemoryLimitsAwareHandler
• DEVSIX-9796 – Type3 Font not processed correctly (missing glyphs) when there are multiple glyphs with same unicode mapping
• DEVSIX-9455 – DA entry is removed from signature field during signing
• DEVSIX-9817 – Copying converted file using iText causes PdfException: Object belongs to other PDF
• DEVSIX-4742 – Throw specific error for an annotation missing a subtype.
• DEVSIX-9231 – Generic NRE is thrown when converting from PDF to PDF/A

📦 Contributors

• We’d like to shout out the following contributors for this release:
• Core team
• [Eugene Bochilo](https://github.com/GrimySoal)
• [Dmitry Chubrick](https://github.com/introfog)
• [Angelina Pavlovets](https://github.com/AnhelinaM)
• [Alexandr Pliushchou](https://github.com/aapsasha)
• [Vitali Prudnikovich](https://github.com/vitali-pr)
• [Dmitry Radchuk](https://github.com/denighte)
• + 23 more

📦 Support for Brotli Compressed PDF Streams

• In this release we’ve added proof‑of‑concept support for reading and writing PDFs that use Brotli compression, including a new filter handler and corresponding high‑level API hooks.

🐛 Bug Fixes and Miscellaneous

• Support for East Asian (Japanese) line‑breaking rules in the layout module was added to avoid orphan punctuation at the beginning of lines, improving typography for Japanese text.
• We also investigated and resolved an issue with form filling and flattening introduced after version 9.0.0, after a customer reported a regression in performance.
• A bug in calculating the maximum number of XRef elements was fixed, avoiding potential overflow issues in large documents.
• We fixed an issue preventing OCG layers from being added, modified, or removed in append mode was fixed, including when no prior OCG layers existed.
• A bug when validating a PDF signature was resolved, where iText did not use OCSP/CRL responses that were added to the document’s DSS in a non-timestamped revision.

📦 Other Stuff

• Don’t forget that in addition to the resources on our Knowledge Base, on our [GitHub](https://github.com/itext/) you can find a ton of useful up-to-date samples in the following repos:
• Java
• [https://github.com/itext/itext-publications-examples-java](https://github.com/itext/itext-publications-examples-java)
• [https://github.com/itext/itext-publications-book-java](https://github.com/itext/itext-publications-book-java)
• [https://github.com/itext/itext-publications-signing-examples-java](https://github.com/itext/itext-publications-signing-examples-java)
• [https://github.com/itext/itext-publications-signatures-java](https://github.com/itext/itext-publications-signatures-java)
• [https://github.com/itext/itext-publications-highlevel-java](https://github.com/itext/itext-publications-highlevel-java)
• [https://github.com/itext/itext-publications-jumpstart-java](https://github.com/itext/itext-publications-jumpstart-java)
• + 3 more

✨ New Features

• DEVSIX-9471 - Implement POC with Bouncy Castle for Post-Quantum algorithms
• DEVSIX-9578 – Brotli compression POC (reading/writing Brotli‑compressed PDFs).
• DEVSIX-9587 – Brotli compression/decompression test coverage.
• DEVSIX-9594 – Update embedded Brotli decoder (Google upstream).
• DEVSIX-9608 – GraalVM support for Brotli compressor.
• DEVSIX-9531 - Samples for Ukraine and Moldova trusted lists
• DEVSIX-8978 – Japanese line‑breaking rules.

📦 Improvements

• DEVSIX-9567 – Correct handling of unencrypted metadata in encrypted PDFs.
• DEVSIX-9599 – Unified output‑stream “finish” API and encryption handling.
• DEVSIX-9405 – Preserve original exceptions for TIFF image errors.
• DEVSIX-9641 – Prevent endless recursion in digital signature validation.
• DEVSIX-9616 – Extended PAdES integration test suite.
• DEVSIX-9610 – Improved DSS change detection and timestamp validation (PAdES).
• DEVSIX-9602 – Tests for modern/post‑quantum signing algorithms.
• DEVSIX-9600 – Compare PAdES validation with eSigDSS.
• + 2 more

🐛 Bug Fixes

• DEVSIX-9623 - CalculateMaxElementsInXref casting from long to int
• DEVSIX-9597 - OCG layers can't be added in append mode
• DEVSIX-9586 – Infinite layout loop in list + keep‑together scenario.
• DEVSIX-9637 – NullReferenceException with nested tables and keep‑together.
• DEVSIX-6486 – Stricter validation of transformation matrix length.
• DEVSIX-9623 – Fix casting when computing max XRef elements.
• DEVSIX-9179 – More robust structure trees after merges (avoid NPEs).
• DEVSIX-9525 - Use OCSP/CRL responses from the latest revision of the document

📦 Contributors

• We’d like to shout out the following contributors for this release:
• Core team
• [Eugene Bochilo](https://github.com/GrimySoal)
• [Dmitry Chubrick](https://github.com/introfog)
• [Angelina Pavlovets](https://github.com/AnhelinaM)
• [Alexandr Pliushchou](https://github.com/aapsasha)
• [Vitali Prudnikovich](https://github.com/vitali-pr)
• [Dmitry Radchuk](https://github.com/denighte)
• + 22 more

📦 **Signature Profiles Support**

• We’ve also made a change to LOTL validation reports to eliminate multiple successful validation messages during the process, along with some general improvements to LOTL caching and validation.

📦 **Extending Flex Layout Support**

• This release significantly improves the flex layout support in the core Layout module. Since this primarily affects pdfHTML, you’ll find more details in the release notes for pdfHTML 6.3.0.

📦 Other Stuff

• As always, you can see the Changelog below to see the full rundown on what’s new in Core, and details of other improvements and bug fixes for this release.
• Java
• [https://github.com/itext/itext-publications-examples-java](https://github.com/itext/itext-publications-examples-java)
• [https://github.com/itext/itext-publications-book-java](https://github.com/itext/itext-publications-book-java)
• [https://github.com/itext/itext-publications-signing-examples-java](https://github.com/itext/itext-publications-signing-examples-java)
• [https://github.com/itext/itext-publications-signatures-java](https://github.com/itext/itext-publications-signatures-java)
• [https://github.com/itext/itext-publications-highlevel-java](https://github.com/itext/itext-publications-highlevel-java)
• [https://github.com/itext/itext-publications-jumpstart-java](https://github.com/itext/itext-publications-jumpstart-java)
• + 3 more

✨ New features

• DEVSIX-9287: Be able to resize pages
• DEVSIX-9419: Signature profiles

📦 Improvements

• DEVSIX-9288: Support more of flexlayout

🐛 Bug fixes

• DEVSIX-2454: The color depth 2 is not supported
• DEVSIX-2941: Extracted Indexed monochrome PDF image image gets color inverted
• DEVSIX-2943: The color depth 4 is not supported
• DEVSIX-3634: When several Unicode characters map to a single glyph in a font, iText creates /ToUnicode mapping mapping only to one Unicode which distorts the original text on text extraction
• DEVSIX-3937: GlyphLine substitutions override font program's glyph unicode mapping
• DEVSIX-9128: FontProgram.getSubset is not thread safe
• DEVSIX-9202: PR: Fix bug: dont remove parent just because children is empty
• DEVSIX-9269: Spike: PR: Fix for NotSupportedException if AreaBreak is inside a flex container
• + 1 more

📦 Contributors

• We’d like to shout out the following contributors for this release:
• Core team
• [Eugene Bochilo](https://github.com/GrimySoal)
• [Dmitry Chubrick](https://github.com/introfog)
• [Angelina Pavlovets](https://github.com/AnhelinaM)
• [Alexandr Pliushchou](https://github.com/aapsasha)
• [Vitali Prudnikovich](https://github.com/vitali-pr)
• [Dmitry Radchuk](https://github.com/denighte)
• + 22 more

📦 EU Trusted Lists in Validation

• You can find full details on this implementation and its usage linked in the [release notes](https://kb.itextpdf.com/itext/release-itext-core-9-3-0) on the iText Knowledge Base.

🐛 Bug Fixes and Miscellaneous

• We’ve also fixed an issue related to color depth support in PDF image data streams, which would result in an `com.itextpdf.io.exceptions.IOException: The color depth 1 is not supported.` error.
• We’ve also resolved a StackOverflowException resulting from invalid PDFs with cyclic references in the trailer dictionary, improving robustness and error handling.

📦 Other Stuff

• As always, you can see the Changelog below to see the full rundown on what’s new in Core, and details of other improvements and bug fixes for this release.
• Java
• [https://github.com/itext/itext-publications-examples-java](https://github.com/itext/itext-publications-examples-java)
• [https://github.com/itext/itext-publications-book-java](https://github.com/itext/itext-publications-book-java)
• [https://github.com/itext/itext-publications-signing-examples-java](https://github.com/itext/itext-publications-signing-examples-java)
• [https://github.com/itext/itext-publications-signatures-java](https://github.com/itext/itext-publications-signatures-java)
• [https://github.com/itext/itext-publications-highlevel-java](https://github.com/itext/itext-publications-highlevel-java)
• [https://github.com/itext/itext-publications-jumpstart-java](https://github.com/itext/itext-publications-jumpstart-java)
• + 3 more

✨ New features

• DEVSIX-9161 – EU Trusted Lists in Validation.

📦 Improvements

• DEVSIX-9277 – Optimized .NET Metadata parsing.
• DEVSIX-9019 – Improved thread safety in the core library.
• DEVSIX-8596 – Advances compatibility with MAUI and .NET deployment models.

🐛 Bug fixes

• DEVSIX-9203 – Stack Overflow fix when opening certain PDFs.
• DEVSIX-8614 – Fixed issues with unsupported 1-bit color depths.
• DEVSIX-8864 – PDF/UA-2 Destination Support.

📦 Contributors

• We’d like to shout out the following contributors for this anniversary release:
• Core team
• [Eugene Bochilo](https://github.com/GrimySoal)
• [Dmitry Chubrick](https://github.com/introfog)
• [Angelina Pavlovets](https://github.com/AnhelinaM)
• [Alexandr Pliushchou](https://github.com/aapsasha)
• [Vitali Prudnikovich](https://github.com/vitali-pr)
• [Dmitry Radchuk](https://github.com/denighte)
• + 22 more

📦 Other Stuff

• Don’t forget that in addition to the resources on our Knowledge Base, on our [GitHub](https://github.com/itext/) you can find a ton of useful up-to-date samples in the following repos:
• As always, you can see the Changelog below to see the full rundown on what’s new in Core, and details of other improvements and bug fixes for this release.
• Java
• [https://github.com/itext/itext-publications-examples-java](https://github.com/itext/itext-publications-examples-java)
• [https://github.com/itext/itext-publications-book-java](https://github.com/itext/itext-publications-book-java)
• [https://github.com/itext/itext-publications-signing-examples-java](https://github.com/itext/itext-publications-signing-examples-java)
• [https://github.com/itext/itext-publications-signatures-java](https://github.com/itext/itext-publications-signatures-java)
• [https://github.com/itext/itext-publications-highlevel-java](https://github.com/itext/itext-publications-highlevel-java)
• + 4 more

✨ New features

• Automated checks for PDF/UA-2 Validation
• Introduce PDF 2.0 tag structure checker

📦 Improvements

• toLowerCase/toUpperCase locale independent usage
• Added copyright attribution clarification for jsoup-related files

🐛 Bug fixes

• Cell with non breakable content and not enough horizontal space leads to page break and data loss
• Font selection breaks tag structure
• BitsPerComponent: 1 and Indexed DeviceRgb failes with "The color depth 1 is not supported error."
• Wrapping ListItem content in a Div with list symbol inside causes wrongly aligned content
• KeepWithNext property causing formatting issue
• PDF 2.0 does not allow DIV, P tags to be children of the P tag
• PDF 2.0 does not allow P, Hn tags to be children of the Form tag
• PDF 2.0 documents should not contain Document tag if it does not contain any content
• + 9 more

📦 Contributors

• We’d like to shout out the following contributors for this anniversary release:
• Core team
• [Eugene Bochilo](https://github.com/GrimySoal)
• [Dmitry Chubrick](https://github.com/introfog)
• [Angelina Pavlovets](https://github.com/AnhelinaM)
• [Alexandr Pliushchou](https://github.com/aapsasha)
• [Vitali Prudnikovich](https://github.com/vitali-pr)
• [Dmitry Radchuk](https://github.com/denighte)
• + 22 more

🐛 Bug Fixes and Miscellaneous

• There’s an update for merge handling when remote and embedded go-to actions are present, and we resolved a customer issue related to decoding Xref streams with missing bytes.
• Many bugs have been resolved for SVG rendering and CSS layout. In addition, general bugfixes have been made to font and text handling, form fields, signing and validation, and more.

📦 Other Stuff

• Don’t forget that in addition to the resources on our Knowledge Base, on our [GitHub](https://github.com/itext/) you can find a ton of useful up-to-date samples in the following repos:
• Java
• [https://github.com/itext/itext-publications-examples-java](https://github.com/itext/itext-publications-examples-java)
• [https://github.com/itext/itext-publications-book-java](https://github.com/itext/itext-publications-book-java)
• [https://github.com/itext/itext-publications-signing-examples-java](https://github.com/itext/itext-publications-signing-examples-java)
• [https://github.com/itext/itext-publications-signatures-java](https://github.com/itext/itext-publications-signatures-java)
• [https://github.com/itext/itext-publications-highlevel-java](https://github.com/itext/itext-publications-highlevel-java)
• [https://github.com/itext/itext-publications-jumpstart-java](https://github.com/itext/itext-publications-jumpstart-java)
• + 4 more

✨ New features

• Implement Text \- Advanced Fonts
• SVG Text text-decoration
• Clipping paths on text
• Support ‘marker-mid’ property
• Support underlined text, dashed lines
• Pass markers from \<g\> element to its children
• Support display none and visibility hidden (except text)

📦 Improvements

• Table performance improvements
• Typography usage in SVG
• Support relative sized SVG in img and object HTML elements
• Support ‘direction’ property
• Text position improvements
• Add default fonts to BasicFontProvider for SVG
• Check childLength calculations with several fonts
• Text Whitespace handling
• + 11 more

🐛 Bug fixes

• BIDI is not correct when converting SVG
• \<polygon\>: tops of figures are cut
• Fix percent width\&height resolving of top level SVG when it is used from html
• Improve relative values support
• Support color related style attribute and values for SVG image
• Division by zero in AbstractBranchSvgNodeRenderer\#calculateAndApplyViewBox results in NPE at
• PdfFormXObject\#calculateBBoxMultipliedByMatrix level
• SVG transformation matrix applied incorrectly
• + 14 more

📦 Contributors

• We’d like to shout out the following contributors for this anniversary release:
• Core team
• Eugene Bochilo
• Dmitry Chubrick
• Angelina Pavlovets
• Alexandr Pliushchou
• Vitali Prudnikovich
• Dmitry Radchuk
• + 22 more

🐛 Bug Fixes and Miscellaneous

• We fixed an edge-case bug in Certificate Revocation List validation. When a CRL response existed, but its issuer was neither trusted, nor self-signed, it could result in a stack overflow error.
• In addition, a fix was made to SVG rendering to honor `dy` attributes in parent text attributes.

📦 Other Stuff

• Don’t forget that in addition to the resources on our Knowledge Base, on our [GitHub](https://github.com/itext/) you can find a ton of useful up-to-date samples in the following repos:
• Java
• [https://github.com/itext/itext-publications-examples-java](https://github.com/itext/itext-publications-examples-java)
• [https://github.com/itext/itext-publications-book-java](https://github.com/itext/itext-publications-book-java)
• [https://github.com/itext/itext-publications-signing-examples-java](https://github.com/itext/itext-publications-signing-examples-java)
• [https://github.com/itext/itext-publications-signatures-java](https://github.com/itext/itext-publications-signatures-java)
• [https://github.com/itext/itext-publications-highlevel-java](https://github.com/itext/itext-publications-highlevel-java)
• [https://github.com/itext/itext-publications-jumpstart-java](https://github.com/itext/itext-publications-jumpstart-java)
• + 4 more

✨ New features

• Support ISO/TS 32004:2024 \- Integrity protection in encrypted documents in PDF 2.0 (PDF MAC)
• Support ISO/TS 32003:2023 \- AES-GCM in PDF 2.0
• Finalized validation module
• Develop API to get used layers in a page

📦 Improvements

• Support RSASSA-PSS encryption in BC fips mode on .NET
• PDF/UA and signing
• SignatureValidator doesn't work with encrypted documents
• Support linearized PDF files in PdfRevisionReader
• When rebuilding xref, log more detailed info
• Support single signature validation

🐛 Bug fixes

• Improve API of RegexBasedLocationExtractionStrategy
• Valid CRL having verifiable issuer results in StackOverflow
• SVG dy attribute not honoured

📦 **Better Handling of Broken PDFs**

• Errors in cross-reference (xref) tables are a common reason for corrupted PDF documents, and iText will now provide more detailed log information when xref tables need to be rebuilt.

🐛 **Bug fixes and miscellaneous**

• A discrepancy in the Java and .NET implementations of RSASSA-PSS support was found where the algorithm parameters for .NET were being ignored, leading to an incorrect signature. This is now fixed.
• Finally, we upgraded our testing framework from JUnit 4 to JUnit 5, and adapted our automated tests.

📦 Other stuff

• Don’t forget that in addition to the resources on our Knowledge Base, on our GitHub you can find a ton of useful up-to-date samples in the following repos:
• Java
• [https://github.com/itext/itext-publications-examples-java](https://github.com/itext/itext-publications-examples-java)
• [https://github.com/itext/itext-publications-book-java](https://github.com/itext/itext-publications-book-java)
• [https://github.com/itext/itext-publications-signing-examples-java](https://github.com/itext/itext-publications-signing-examples-java)
• [https://github.com/itext/itext-publications-signatures-java](https://github.com/itext/itext-publications-signatures-java)
• [https://github.com/itext/itext-publications-highlevel-java](https://github.com/itext/itext-publications-highlevel-java)
• [https://github.com/itext/itext-publications-jumpstart-java](https://github.com/itext/itext-publications-jumpstart-java)
• + 3 more

✨ New features

• Dedicated high-level validation API
• Support multiple CRL distribution points per certificate
• Support revision comparison according to DocMDP standard
• Support revision comparison according to FieldMDP standard

📦 Improvements

• General improvements to handling and repair of broken or defective PDFs

🐛 Bug fixes

• RSASSA-PSS parameters are ignored in .NET

📦 GraalVM Native Image Support

• As you can see on https://www.graalvm.org/native-image/libraries-and-frameworks/, the iText Core libraries are listed as tested with this technology.
• Resource Efficiency: They are cheaper to run, since they use a fraction of the resources required by a Java Virtual Machine.
• Fast Startup: Native Image executables start in milliseconds.
• Immediate Peak Performance: They deliver peak performance immediately, with no warmup.
• Efficient Deployment: Native executables can be packaged into lightweight container images for fast and efficient deployment.
• Reduced Attack Surface: Since they only include the code required at runtime, native executables present a reduced attack surface.
• As you can imagine, this opens up a world of possibilities for iText applications and we’re looking forward to seeing what you can do with it. So, if you develop anything cool, let us know!

📝 Read and Roll Back Document Revisions

• We’ve added some functionality in the `kernel` and `sign` modules which enable iText to parse and gather the revisions to a signed document, and roll back to a previous version if necessary.

📦 Other stuff

• Don’t forget that in addition to the resources on our Knowledge Base, on our GitHub you can find a ton of useful up-to-date samples in the following repos:
• Java
• https://github.com/itext/itext-publications-examples-java
• https://github.com/itext/itext-publications-book-java
• https://github.com/itext/itext-publications-signing-examples-java
• https://github.com/itext/itext-publications-signatures-java
• https://github.com/itext/itext-publications-highlevel-java
• https://github.com/itext/itext-publications-jumpstart-java
• + 3 more

✨ New features

• Introduce continuous GraalVM Native Image support
• Additional PDF/UA creation APIs and checks
• Implemented IAccessibleElement on form fields
• Improve OCSPVerifier logic
• Add functionality to parse different document revisions

📦 Improvements

• Correct tagging for interactive form fields
• Update bouncy castle version to 1.78

🐛 Bug fixes

• Fix ListBoxField infinite loop
• Fix Font changing after special character
• Fixed not selecting an appropriate font if the character is neither first nor significant
• Tagged PDF: fix underline handling

📦 Other stuff

• Don’t forget that in addition to the resources on our Knowledge Base, on our GitHub you can find a ton of useful up-to-date samples in the following repos:
• Java
• https://github.com/itext/itext-publications-examples-java
• https://github.com/itext/itext-publications-book-java
• https://github.com/itext/itext-publications-signing-examples-java
• https://github.com/itext/itext-publications-signatures-java
• https://github.com/itext/itext-publications-highlevel-java
• https://github.com/itext/itext-publications-jumpstart-java
• + 3 more

✨ New features

• Finalized PAdES Signing high-level API
• Two-step/asynchronous signing
• Improved logic for missing certificates in chain
• Introduced support for PDF/UA-2

📦 Improvements

• SVG: Support stroke-dasharray attribute and CSS property
• Update bouncy castle FIPS version to 1.0.2.4 on Java
• Customize signature orientation
• Pages counter works incorrectly when keep_together property value changed during first layout

🐛 Bug fixes

• Text extraction issue if ToUnicode cmap contains not default codespace ranges
• Text extraction produces invalid text
• Problem with creating incremental updates to hybrid-reference files

📦 PDF/A-4 support

• Plus, it simplifies the handling of digital signatures. Which leads us nicely into:

✨ New Features ##

• PDF/A-4 family support
• Introduced higher level signing API
• High-level API for annotation flattening

📦 Improvements ##

• Create default implementation for IExternalSignatureContainer
• Signature appearance improvements

🐛 Bug Fixes ##

• KeepTogether property set on table might lead to infinite loop
• PDF with Missing Dict Causes Exception
• Incorrect processing of table cells with large rowspan occupying more than one page
• Row span doesn't carry the Cell color to next page

✨ New Features

• Algorithm agnostic signing/validation
• Support for flex-wrap: wrap property and value
• Add ability to customize form related implementations

📦 Improvements

• Improved PdfFormField regeneration handling
• Several improvements to font-asian module

🐛 Bug Fixes

• Fixes for incorrect checkbox handling
• Flex item with nested floating element processed incorrectly
• PdfPageFormCopier improvements tagging issue

✨ New features

• RSASSA-PSS support
• Add support for recently published ISO extensions to digital signing
• Add support for FIPS 140-2 compliant Bouncy Castle module

📦 Improvements

• Improve Checkbox behavior on Adobe Acrobat for PDF/A documents
• Support for TIF images with CCITT T.4 compression

🐛 Bugs

• Text extraction with non-identity CMaps occasionally produces wrongly decoded output

📦 Improvements

• Updated jackson-databind dependency to 2.13.4
• PDF/A: Add check for Default Color Space
• Implement chainable API to neutralize tagging on specific layout elements
• Implement PDF Type 0 (Sampled) Functions (chapter 7.10.2 of 32000-1_2008)
• In the method ImagePdfBytesInfo.decodeTiffAndPngBytes when the colorspace is a separation color space don't throw an exception but recalculate the image pixels to the alternate colorspace of the separation color
• Update CMap files in font-asian package

🐛 Bugs

• Smart mode copying merges GoTo actions with different explicit destinations into a single PDF object
• PdfDocument.copyPagesTo was creating corrupt PDFs when there was a button widget whose action is to jump to another page within the same document
• When merging using UseSmartMode() layers with identical names were discarded
• Result of text extraction differs from the original document text for CJK fonts (Identity-H/V encoding)
• table.createRendererSubTree() is producing an incorrect height calculation for the occupied area BBox. If we set the cell height to the calculated value, then text is being clipped on the final output

📦 Improvements

• Android Support
• Save XMP metadata in canonical format for PDF/A documents
• Implement Pdf Type 2 function (Exponential Interpolation) Functions
• Implement Pdf Type 3 (Stitching) Functions
• Indirect ref in PdfStream issues: implement the first solution mentioned during the refinement
• Update several 3rd party dependencies to their most recent version

🐛 Bugs

• SVG: support exponent notation for numbers with capital E
• Fix NPE on CopyPagesTo
• Issue with flushing PDF stream with indirect reference in /Filter
• Fix infinite loop when reading a PdfDocument
• Fix the NPE which is thrown when table cell content is clipped

📦 Improvements

• Updated some Java dependencies (Bouncy Castle 1.70, Logback 1.2.10, slf4j 1.7.33)

🐛 Bugs

• Fixed [CFF](https://adobe-type-tools.github.io/font-tech-notes/pdfs/5176.CFF.pdf) font-parsing logic
• CVE fixes
• CVE-2022-24196 - out-of-memory error via the component readStreamBytesRaw
• CVE-2022-24197 - stack-based buffer overflow via the component ByteBuffer.append

📦 Improvements

• SVG: Support default value for <path> 'd" attribute
• Process Outlines using explicit hierarchy
• Support of copying empty tags

🐛 Bugs

• Outlines structure parsing: infinite loop while merging with outlines
• SVG. Support of q/Q Operators inside BT/ET text block/object
• Set PubKeySecurityHandler output stream with DER encoding format
• OcgPropertiesCopier: StackOverflowError when merging documents with OCGs if a resource has cycle reference

🐛 Bugs

• Security bugfix for vulnerability in GhostScript

💥 Breaking Changes

• Removed deprecated methods from API

✨ New Features

• Unified License Mechanism
• Introduce interface of typography logic and stub implementation at the layout level

📦 Improvements

• Case insensitive SVG tags
• Jsoup 1.14.1
• Throw specific errors when Outline Dictionary breaks PDF specs rules

🐛 Bugs

• Streams remain open in case of exception in PdfDocument/PdfReader constructors
• PdfPageFormCopier. multiple widget source field can`t be added to AcroForm when there is a name conflict.
• Infinity loop in ParagraphRenderer
• Prevent empty producer line logic
• No list symbol indention for "Right to left" text
• Layout: Cell with big rowspan causes infinite loop

✨ Features

• SVG. Customizable TextLeafSvgNodeRenderer
• Support for encryption embedded files only

📦 Improvements

• Improve Bezier curve approximation for rounded borders
• Improve performance of Metadata parsing
• Support ICCBased color space
• Refactor preClose() in PdfSigner

🐛 Bugs

• Streams remain open when Exception thrown
• Support Type3 fonts extraction, when glyphs have non-standard names

💥 Breaking changes

• removing deprecated methods from the layout module

📦 Improvements

• SVG: added support for M/m operators followed by a pair of coordinates
• support for Type3 fonts with non-standard glyph names
• support justify-content and align-items
• better PDF/A Conformance exception text
• ignore invalid catalogue version on document load
• Improve exception message when removing a page from a document with invalid outlines
• BouncyCastle version has been updated from 1.67 to 1.68

🐛 Bugs

• layout: cells with percent width change column width after overflow
• add null check for producer string

✨ New Features

• SVG: Support `<pattern>` element
• Support of form fields border styles (Beveled, Underline and Inset)

📦 Improvements

• SVG: add support of font-relative units for the font-size property in a text element
• Allow OTF language records to be fetched by tag
• Support word-wrap and word-break properties

🐛 Bugs

• Expand colored background on the overflowed part of span
• SVG stroke-width doesn't work in `<use>` tags
• Signed short number overflows in readCoverageFormat()
• Page-break-inside: avoid not being taken into account for floating DIVs

✨ New Features

• Support DCT filter for image bytes decoding
• Support JPXDecode filter for image bytes decoding
• SVG: support symbol element

📦 Improvements

• Wordwrapping: support proper processing of preceding inlineBlock or ImageRenderer
• PDF/A: page transparency check
• PDF/A: "Implementation limits" requirement check
• Refactor MemoryLimitsAwareHandler
• Merging keeps OCG dictionary
• Handling of the PDF document with outlines which don't have correct Parent entry

🐛 Bugs

• TrueTypeFont with standard base font is not parsed from PDF correctly
• NPE on empty letter spacing declaration
• Potential security vulnerability in XMP Metadata parsing

✨ New Features

• Expose image identification API in io module
• Add possibility to remove items from outline tree
• Initial support of linearGradient in SVG and in CSS

📦 Improvements

• itext7-dotnet PR [#8](https://github.com/itext/itext7-dotnet/pull/8): Fix behaviour on systems with alternative minus sign characters (Ported to Java)
• itext7 PR #42: Malformed cross-reference stream fixed
• Process large table's split correctly
• itext7 PR #40: If line.start <=0 then continue replacing whitespaces otherwise it is a GlyphLine which has been created from existing one

🐛 Bugs

• Digital Signatures: annotation dictionary incorrectly updated when signing a pre-signed document
• Incorrect appearance for choice fields after the setValue call
• Glyph bbox is calculated incorrectly for type 3 fonts in case font matrix has 1 as multiplier when parsing content stream
• Improve the performance of the replaceSpecialWhitespaceGlyphs method
• layout: KEEP_TOGETHER works incorrectly with floating elements
• Pdf/A compliance checker incorrectly throws exception when a /Configs entry is not present in the /OCProperties dictionary
• SVG: Incorrect default resource resolving
• SVG: Fix Preserve AspectRatio attribute
• + 3 more

✨ New Features

• Improve creation and(or) merging of outlines for documents created in pdfHtml
• Basic implementation of orphan/widow control

📦 Improvements

• itext7-dotnet PR [#6](https://github.com/itext/itext7-dotnet/pull/6) (and i7n-pdfsweep PR [#1](https://github.com/itext/i7n-pdfsweep/pull/1)): Fix missing index and newlines in cleanup regexes ([thank you vemoo!](https://github.com/vemoo))
• itext7 PR [#44](https://github.com/itext/itext7/pull/44): Fix null pointer in PdfAcroForm ([thank you craftmaster2190!](https://github.com/craftmaster2190))
• itext7-dotnet PR [#4](https://github.com/itext/itext7-dotnet/pull/4): Path transformation to userspace ([thank you Moneema14](https://github.com/Moneema14) for the inspiration!)
• While checking whether a cell with a fixed height should be split, float are compared without any epsilon value, which may cause issues because of float precision inaccuracy

🐛 Bugs

• Make fringe attribute in xfdf squre and circle annotations optional
• Several bugs in processing of /TI for choice fields
• setValue method works incorrectly for a choice form field
• NotoSerifKhmer is rendered poorly
• GposLookupType5: mark to ligature positioning results in duplicating the mark
• Fix issue with Khmer text being incorrectly formatted
• Adding a PNG to pdf creates unopenable pdf document
• The FillOpacity is not set correctly on the GraphicsState of TextRenderInfo

✨ New Features

• Allow individual page loading when reading
• Implement scheduledCheck analog for iText Core
• Update BouncyCastle dependency to 1.64
• SVG: Feature: Markers, initial support

📦 Improvements

• Document PdfReader#setMemorySavingMode

🐛 Bugs

• When filling unmerged fields iText doesn't distinguish field and widget dictionaries
• Digital Signatures: annotation dictionary incorrectly updated when signing a pre-signed document
• Leading spaces are trimmed in form field appearances
• Adding a field to an existing acroform fails when using the PdfDocument append mode.
• Opening, setting tagged and closing an already tagged pdf rewrites the parenttree dictionary
• Problem with PDF/A end page event
• Fix SignUtils class to handle the case when a certificate doesn't have unsupported critical extensions
• svg: set default stroke width to 1 px value

📦 Tasks

• Make sure that all iTextCore tests extend ExtendedITextTest
• Reorganize samples-internal tests: FormFieldTest
• Reorganize samples-internal tests: FormFieldFlatteningTest
• xfdf: move xfdf message constants to XfdfException class
• Add test category to some itextcore tests
• Deprecate IdelOutputStream
• Reorganize samples-internal tests: InlineImageExtractionTest
• Avoid reading page dictionaries in ParentTreeHandler.registerMcr()
• + 19 more