Release notes - UniPDF v4.8.0

This release contains improvement, security patch and bug fixes

Improvement

• US-1325 Supported minimum Go version update to Go 1.24

Security Patch

• US-1333 [CVE-2023-36308] indirect use of github.com/disintegration/imaging: crafted TIFF image can cause panic

Bug Fixes

• US-1349 extractor text matrix position miscalculation on text extraction due not synced parent CTM fix.
• US-1350 PdfReader.GetPreviousRevision() panic fix
• US-1312 Splitting division to several pages hangs fix
• US-1321 OCR service integration retry request clone body payload fix
• US-1319 Test cases document signing with timestamping authority (TSA) fix
• US-1316 Github actions CI on lint fail fix

Release notes - UniPDF v4.7.0

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

New Features

• US-1284 StyledParagraph Drop Caps support
• US-311 extractor add disable de-hyphenation option

Improvements

• US-376 render multiply blend mode transparency processing
• US-1204 Parser handle missing endobj on PdfIndirectObject gracefully

Bug Fixes

• US-1282 typesetting version causing breaking changes on update fix
• US-144 Hyphenated word that spans two lines fails to extract properly fix

Release notes - UniDoc Sprints - UniPDF v4.6.0

This release contains new features, improvements and bug fixes.

New Features

• US-1244 Custom image interpolator setting in render PDF to image
• US-1232 Digital signature PAdES-LT support external signing
• US-1149 Tagging for `Chapter` component
• US-1150 Tagging for `Division` component

Improvements

• US-202 Text encoding glyph substitution support runes into charcode
• US-1236 Document level font caching during PDF to image conversion
• US-1254 Optimized floating point precision operations in render PDF to image

Bug Fixes

• US-1251 Table rows missing and being duplicated fix
• US-1241 Table repeated header sometimes not appearing on new page fix

Release notes - UniPDF v4.5.0

This release contains new features, improvements and bug fix.

New Features

• US-1151 Add API integration with Tesseract OCR
• US-1197 Add support for rendering text using OTF font
• US-1178 Add PDF/A validation scripts for PDF/A-4 and it’s variants (PDF/A-4e and PDF/A-4f)

Improvements

• US-1173 Add `PieceInfo` in Document catalog
• US-201 Support unicode segmentations before encoding the rune into charcodes
• US-1208 PDF/A-4 add testdata for 4F and 4E profiles into unipdf-testdata
• US-1209 PDF/A-4 add pdfaid rev support in PDF metadata

Bug Fix

• US-1214 High memory usage when rendering PDF with large font size to image fix

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

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

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

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

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

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