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Xceed 2026 v3 Release Notes

Release notes for Xceed 2026 v3: what changed across 2 Xceed products.

Xceed 2026 v3 release notes

PDF Library 3.1

Breaking changes

Pen and Brush — Breaking changes:
- Introduced RGBPaint and GrayPaint classes to manage Paint objects, replacing SolidColorBrush.
- Pen now uses Paint and Opacity properties, with SetPaint() and SetOpacity() methods, removing Pen.StrokeBrush and Pen.SetBrush().
- Brush class now includes Paint and Opacity properties, and SetPaint() and SetOpacity() methods. Added FromColor() and FromPaint() methods for creating brushes from solid RGB colors or Paint objects.

What's new

DocumentPdf — A new ValidatePdfStandards() method in PdfDocument validates document conformity with specific PDF/A standards. SaveOptions now includes a Standards property to set PdfStandardOptions when saving PDF documents.
Image — Individual images and images in an ImageCollection can now be exported to a file path or a stream.
Texts and Paths — New samples demonstrate how to set texts and paths using predefined or custom Brush and Pen objects, along with Paint objects.
PdfStandardOptions (v3.1) PdfStandardOptions now includes a PdfA_3B profile, enabling a PdfDocument to be saved or validated against the PDF/A-3B standard.
PdfStandardOptions — PdfStandardOptions now includes a PdfA_2U profile, allowing a PdfDocument to be saved or validated against the PDF/A-2U standard.
PdfStandardOptions (v3.1) PdfStandardOptions now supports the PdfA_3U profile, enabling the saving or validation of a PdfDocument against the PDF/A-3U standard.
PdfStandardOptions (v3.1) PdfStandardOptions now includes the PdfA_4 profile, allowing a PdfDocument to be saved or validated against the PDF/A-4 standard.
PdfStandardOptions (v3.1) PdfStandardOptions now offers a PdfA_4F profile, allowing a PdfDocument to be saved or validated against the PDF/A-4F standard.
PdfStandardOptions (v3.1) PdfStandardOptions now includes a PdfA_2A profile, allowing a PdfDocument to be saved or validated against the PDF/A-2A standard.
PdfStandardOptions — PdfStandardOptions now offers a PdfA_3A profile, enabling users to save or validate a PdfDocument against the PDF/A-3A standard.

Improvements

DocumentPdf — The PdfDocument.Validate() method now returns a PdfStandardValidationResult, which exposes an IsValid property and lists any errors found during PDF validation.

Fixes

PdfDocument (v3.1) Shared state no longer prevents independent PDF documents from being manipulated in parallel.
Opacity — Loading a PDF document where Image, Watermark, Brush, or Pen opacity values are outside the 0 to 1 range no longer throws an ArgumentOutOfRangeException. The library now clamps each value to between 0 and 1 inclusive.
DocumentPdf — In PdfDocument raw content, the dictionary tokenizer now validates its opening delimiter and rejects input that does not start with a double angle bracket. Document parsing behavior is unchanged.
PdfDocument (v3.1)\nIn PdfDocument raw content, literal strings using carriage-return or Windows-style line endings, including backslash line continuations, are now decoded correctly. Octal character escapes ending immediately before a parenthesis are also decoded correctly.
DocumentPdf — Names in raw PDF content that are separated from the following token by a tab, form-feed, or null character, and names immediately followed by a comment, are now parsed correctly.
DocumentPdf — Hexadecimal strings in the raw content are now correctly parsed when separated by tab, form-feed, or null characters. Additionally, strings with an odd number of digits are now decoded properly.
DocumentPdf — In PdfDocument raw content, a carriage-return/line-feed pair is now tokenized as a single end-of-line marker instead of two.
DocumentPdf — Operator tokens in raw content within PdfDocument that are immediately followed by a comment or a curly brace are now parsed correctly.
DocumentPdf — Stream tokens in PdfDocument raw content are now read in compliance with the PDF specification.

Words for .NET 6.1

What's new

New property in document class can enable or disable TrackChange option for word document. ex: document.TrackChangesEnabled =true;
HTML Content — The Paragraph class now includes a new AddHtmlContent() method, allowing HTML content to be inserted within or appended to an existing paragraph, converting the markup to Words formatting.
HTML Content — The HTML parser now supports MathML content. Mathematical formulas using the <math> element are converted when HTML content is inserted into a document.
Document — MathML content is now converted to native Word equations when importing HTML. Equations produced by MathJax – read from the data-mathml attribute – are inserted as editable OMML objects covering fractions, radicals, sub- and superscripts, n-ary operators, fenced expressions and matrices, in both paragraphs and table cells.

Fixes

Word document, bookmarks. When replacing a bookmark's content, bookmark's foot style were not preserve. Fixed
In Convert to PDF, TextBoxes defined with the legacy VML syntax (w:pict) are now converted. Note: grouped shapes are flattened rather than overlaid, and shapes positioned in absolute relative to the text are placed after the text of their paragraph rather than being wrapped by it.
Conversion PDF — In Convert to PDF, the image of a signed signature line is now rendered, together with the signature line and the name of the signer. Note: On .NET 5 and above, SkiaSharp cannot decode metafiles, so the signature line placeholder is not drawn on that target, only the signature image is drawn.
Conversion PDF — In Convert to PDF, TextBoxes internal margins and the indentation of their paragraphs are preserved.
Conversion PDF — In Convert to PDF, custom lists using a specific numbering, including levels with no number format, are now rendered with the same values as Word.
Conversion PDF — In Convert to PDF, GetPageCount() now returns the correct value for documents using full page images anchored over the text.
Conversion PDF — In Convert to PDF, the content of Tables that span multiple pages no longer gets cut off during the conversion process.
HTML Parser — Inserting HTML content with a heading no longer throws an exception.
HTML Parser — Inserting HTML content that contains a base64-encoded image no longer throws an exception. The image is now decoded and added to the document.
HTML Parser (6.1) Tables in inserted HTML content now retain their styling, and symbol characters inside table cells are preserved.
HTML Parser (6.1)\nLists in inserted HTML content now maintain their original numbering type and indentation, including nested ordered lists that differ from their parent list's numbering style.
Conversion PDF — Fixed an issue where using an external font during PDF conversion could cause a System.OverflowException.