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23 days ago
unipdf

v4.4.0

Release notes - UniPDF v4.4.0

This release contains new features and improvements.

New Features

  • US-1112 Add automatic document tagging in creator package
  • US-1136 Add utilities functions PrintPdfObjects, ExtractPageRange, and MergePdf
  • US-1148 Add function to remove attributes in PAdESLevelT signature handler
  • US-1135 Add function for custom http.Client in NewEtsiPAdESLevelLT

Improvements

  • US-1164 Redaction package improvements: added standard patterns for SSN, email, phone number, and credit card
2025-09-02 21:18:24
unipdf

v4.3.0

Release notes - UniPDF v4.3.0

This release contains new features, improvements and bug fixes.

New Features

  • US-694 Tagging PDF contents
  • US-697 Tagging a list elements
  • US-1077 Tagging widget annotations
  • US-1078 Tagging Grid component
  • US-1069 Add support for RSASSA-PSS in pkcs7 and signature validation
  • US-1098 GridRow: add new function GetHeight()

Improvements

  • US-1121 Supported go version for unipdf (1.23.0, 1.24.0 and 1.25.0)
  • US-1005 Optimise memory usage in creator.AddPage for large or complex pages
  • US-1079 Implements PdfAnnotations deep copy method
  • US-1080 Investigates font encoding issue found during form flattening process
  • US-1097 ECDSA key support for PAdES
  • US-1101 Update golangci-lint version

Bug Fixes

  • US-1051 Second signature is overwritten or removed fix
  • US-1100 Resolves vulnerability issue found in golang.org/x/net v0.35.0 fix
2025-07-29 01:31:33
unipdf

v4.2.0

Release notes - UniPDF v4.2.0

New Features

  • US-515 Page level concurrency for text extraction
  • US-695 Tagging annotations support
  • US-696 Tagging table contents support
  • US-1090 Digital Signature ECDSA (Elliptic Curve DSA) Support

Improvements

  • US-995 Improves write process of pdf objects to improve memory usage
  • US-920 UniPDF docker image update to Go 1.20

Bug Fixes

  • US-1095 Overlapping table rows fix
  • US-1081 Issue with rendering pdf to image fix
  • US-1072 Issue with setting Arabic text in PDF form field fix
2025-06-24 06:20:40
unipdf

v4.1.0

Release notes - UniPDF v4.1.0

This release contains new features and improvements.

New Features

  • US-651 Extract vectorized lines from PDF
  • US-722 UniPDF Page utility function for color transformation content

Improvements

  • US-983 SVG radial gradients support
  • US-1049 New functions for cell grid, including SetIndent, GetIndent, SetSideBorderColor, Height, and SetPos
2025-05-11 01:28:12
unipdf

v4.0.0

Release notes - UniPDF v4.0.0

This release contains new features, improvements, bug fixes and removes deprecated functions.

New Features

  • US-582 SVG element linear gradient handling
  • US-946 Rewriting the Table component so that it behaves more like an HTML table
  • US-948 Write method that returns a byte array in PdfObject interface.

Improvements

  • US-978 Move svg package into creator package to prevent import cycle
  • US-947 Revision of text extraction API
  • US-949 Buffered reader type which encapsulates a ReadSeeker and a buffered Reder.(bufio.Reader)
  • US-955 Implements `maxLines` in `StyledParagraph` to behave similarly with `Paragraph` component
  • US-1012 Merge v3 and v4 UniPDF branches

Bug Fixes

  • US-415 Fix TestRenderToImage test on arm64 arch

Deprecations

  • US-948 Deprecate PdfObject interface WriteString method in favour of Write method that returns a byte array.
  • US-945 Deprecate creator.Paragraph in favour of creator.StyledParagraph
2025-04-27 17:02:36
unipdf

v3.69.0

Release notes - UniPDF v3.69.0

This release contains improvements and bug fixes.

Improvements

  • US-984 Transparent background for digital signatures
  • US-977 PDF image watermark consistency

Bug Fixes

  • US-413 Fix TestExtractImages test on arm64 arch
  • US-414 Fix TestFdfMerging test on arm64 arch
  • US-416 Fix TestOptimizePdfADocuments test on arm64 arch
  • US-417 Fix TestOptimizePdf2ADocuments test on arm64 arch
  • US-953 Fix PDF fails to split when PDF having invalid xref object
  • US-963 Fix issue when processing inline image with the parameter L instead of Length
  • US-974 Fix CI build imagemagick repository
  • US-1001 Fix malformed PDF document produced when the catalog child is not an indirect object
2025-03-24 01:13:15
unipdf

v3.68.0

Release notes - UniPDF v3.68.0

This release contains improvements and bug fixes.

Improvements

  • US-931 Update minimum supported Go version in UniPDF
  • US-896 Improves text extraction to also check ActualText information from StructTreeRoot
  • US-922 Replace StructTreeRoot in text list extractor with the one in model package

Bug Fixes

  • US-925 Fix fatal error: concurrent map writes in concurrent use of PdfPage.Render
  • US-405 Fix TestAnnotatorInk test on arm64 arch
  • US-406 Fix TestFormFillRender test on arm64 arch
  • US-407 Fix TestChartBasic test on arm64 arch
  • US-408 Fix TestChartInTable test on arm64 arch
  • US-409 Fix TestChartInDivision test on arm64 arch
  • US-410 Fix TestDivisionBackgroundInTable test on arm64 arch
  • US-411 Fix TestDivisionBackgroundMiscComponents test on arm64 arch
  • US-412 Fix TestTemplateProcessorContainerComponents test on arm64 arch
  • US-766 Fix Vector text color inverted to black
  • US-867 Fix Text truncation because overlapping border
2025-02-23 06:53:19
unipdf

v3.67.0

Release notes - UniPDF v3.67.0

This release contains improvements and bug fixes.

Improvements

  • US-699 Accessibility text expansion of abbreviations and acronyms
  • US-700 Text replacement for TextChunk
  • US-895 Add SetOpacity function for TableCell
  • US-906 Extractor improve plain text extraction of rotated text

Bug Fixes

  • US-778 FlattenFields issue for PDF documents fix
2025-01-26 19:01:31
unipdf

v3.66.0

Release notes - UniDoc Sprints - UniPDF v3.66.0

This release contains new features, improvements, and bug fix.

New Features

  • US-834 Add text watermark to a PDF document
  • US-853 Support rotation for AddWatermarkImage
  • US-785 PDF text extraction options add RelaxedMode

Improvements

  • US-847 Update minimum supported Go version to version 1.19
  • US-791 UniPDF adding fuzz test cases
  • US-833 Provide different color to different form field in the PDF

Bug Fix

  • US-873 Invalid AcroForm entry *core.PdfObjectStream during pdf split fix
2024-12-22 20:10:57
unipdf

v3.65.0

Release notes - UniPDF v3.65.0

This release contains new features, improvements and bug fixes.

New Features

  • US-750 Remove watermark from PDF document
  • US-645 Search and replace text in PDF document

Improvements

  • US-781 DisableMultiColumns option on text extraction

Bug Fixes

  • US-807 golang x/crypto and x/net update version due security issues
  • US-248 PDF extractor is not extracting content properly fix