Latest release (November 2025)

This release includes enhancements and bug fixes.

Full list of changes in this release

KeyCategorySummary
MERGERNET-2069EnhancementImprove preservation of accessibility metadata when merging tagged PDFs
MERGERNET-2050BugDiagram document operations fail due to missing font paths on macOS/Linux
MERGERNET-1007BugMerging multiple Word files - create duplicate pages
MERGERNET-1102BugException Rounding digits must be between 0 and 15, inclusive when merging two DOCX-files
MERGERNET-987BugBig size of the merged document
MERGERNET-1174BugCannot change PDF page orientation
MERGERNET-2049BugVSD format operations fail with NullReferenceException
MERGERNET-2070BugCorrupted output when the new merged PDF is shorter than the existing file
MERGERNET-2053BugMerging PDF and SVG documents fails due to missing font configuration on macOS
MERGERNET-2051BugNote document operations fail due to missing font paths on macOS/Linux
MERGERNET-799BugSlides venture licenser method SetVentureLicensed is not working correctly

Major Features

  • Improved Tagged PDF Merging: Enhanced support for preserving accessibility metadata when merging tagged PDF documents, ensuring better compliance and usability in assistive technologies.

  • Key Bug Fixes: Resolved issues affecting document merging and processing across multiple formats including Word, PDF, Diagram, Note, and VSD. Fixed problems related to duplicate pages, file corruption, font path dependencies on macOS/Linux, incorrect page orientation handling, file size growth, and licensing method behavior.

Public API and backward incompatible changes

  1. Introduced PreserveAccessibility property in PdfJoinOptions class. Indicates if PDF accessibility (tagged PDF structure) should be preserved during merge. When true, the merged document will have auto-generated accessibility tags for PDF/UA compliance.

    Usage:

    ...
var pdfJoinOptions = new PdfJoinOptions
{
    PreserveAccessibility = true
};
merger.Join(file, pdfJoinOptions);
...