Released: Mar 1, 2026

2026.3.1 での更新項目

機能

• Added CompressPdfToBytes and CompressPdfToStream with automatic smart compression, reducing PDF size via disk or in-memory processing.
• Improved PDF/UA accessibility support by resolving structural tagging errors, restoring semantic tags (H1/P), fixing label rendering issues, eliminating AccessViolationException crashes during form processing, and preventing duplicate accessibility tags.
• Enhanced signature validation with certificate trust chain, revocation status, algorithm strength, byte range integrity, and optional incremental tampering detection checks.
• Enhanced RTF to PDF conversion with multi-column layout support and automatic detection of landscape orientation, margins, and column settings. Resolved table border clipping, first-character cut-off, and duplicate metafile image issues.
• Enhanced internal HTML rendering by replacing internal URLs with a custom scheme to improve security compliance and remove unnecessary network requests.

不具合の修正

• Fixed PDF/A validation failures caused by non-standard XMP metadata and incomplete Type1 font CharSet entries.
• Fixed an issue where parsing signature timestamps caused an unhandled exception.
• Fixed an issue where resizing rotated pages caused incorrect dimensions or content cut-off.
• Fixed LinuxAndDockerDependenciesAutoConfig to correctly install libasound2t64 on Ubuntu 24.04 for .NET 9/10 environments.
• Fixed an issue where HTML headers and footers rendered with incorrect width and font scaling when UseResponsiveCssRendering (Fixed Pixel Width) was enabled.
• Fixed System.AccessViolationException when adding top-level bookmarks to PDFs with malformed outline structures.
• Fixed an issue where ComboBox form fields lost selection options after merging or appending PDFs.