Released: May 14, 2026

2026 Q2 (2026.2.514) での更新項目

機能

• What's New:
  • The output stream is now automatically cleared before exporting, preventing corrupted documents when reusing a stream that already contains data.
  • Document Processing NuGet packages are now published on NuGet.org for easier discovery and consumption.
• Breaking Changes:
  • Removed all obsoleted APIs.
• PdfProcessing:
  • Handled import of documents with missing/invalid rectangle (re) operands.
  • Handled invalid ASCII85Decode filter scenario - PDF streams where the end-of-data marker contains whitespace.
  • Added import-export support for ShadingType 1.
  • Added import-export support for ShadingType 4.
  • Added import-export support for ShadingType 6.
  • Added import-export support for ShadingType 7.
  • Exposed internal GrayColor object.
  • Introduced support for signing multiple Signature fields.
• SpreadProcessing:
  • Cell rotation is now respected when exporting the workbook to PDF.
  • Introduced calculation chain functionality.
• WordsProcessing:
  • Introduced support for the Markdown file format, allowing import/export from/to markdown format.
  • TxtFormatProvider: Introduced support for export of Lists.

不具合の修正

• PdfProcessing:
  • Fixed issue where a NullReferenceException is thrown when exporting a document with a Type 3 font with missing/invalid Unicode mapping.
  • PdfStreamWriter: Duplicated page content due to incorrect caching mechanism.
  • PdfStreamWriter: Fixed slow performance during page splitting.
  • SkiaImageFormatProvider: NullReferenceException is thrown when exporting pages containing images with missing optional ColorSpace.
  • Fixed issue where XMP metadata is unescaped during import-export.
  • Fixed issue where document password cannot be resolved when document produced by the library contains a SignatureField.
  • Fixed issue where hidden PDF layers are imported as visible.
  • Fixed issue where an invalid PDF document is exported when inserting a specific Jpeg image with an ICC profile.
  • Fixed issue where a password is asked although Adobe opens the document without one.
• SpreadProcessing:
  • Fixed issue where pasting a range in filtered rows overwrites their content.
  • Fixed issue where formatting string #.##0,00;-#.##0,00;;@ does not hide zero values.
  • Fixed issue where images don't move with cells when a row/column is inserted.
  • Fixed issue when setting value in a cell, certain strings are recognized as dates instead of as text.
• WordsProcessing:
  • Fixed issue where font of a style is changed on RTF import when the font is not explicitly defined in the style, and default character properties ('\defchp') have font defined or \defchp is missing altogether.