Released: Mar 27, 2026

2026.4.1 中的更新

特性

• Improved PDF rendering performance by reducing internal render calls and reusing browser tabs to minimize startup overhead.
• Improved PDF/UA structure tree tagging for forms with mixed input types, hidden elements, deeply nested labels, and annotation ordering to ensure correct widget-to-structure element association.
• Improved IronPdfEngine Docker image security by removing unnecessary packages, resolving 4 high-severity CVEs and over 1,400 other security scan findings.
• Improved IronPdfEngine Docker container to correctly forward runtime arguments like port, license_key, and chrome_browser_limit.
• Reduced IronPdfEngine Docker image size by 60% (from 2.89 GB to 1.14 GB).

修补程序

• Fixed memory leak in ReplaceTextOnPages, ReplaceUnicodeText, RedactText, and RedactRegions where repeated calls caused increasing memory growth (93-97% reduction).
• Fixed buffer over-read in GetMetadata that could cause crashes or data corruption.
• Fixed an issue where PDF/UA conversion removed CSS overflow:hidden clipping, ensuring clipped images render identically to standard PDF output.
• Fixed an issue where SignatureName was always empty when verifying signatures created by external signers such as Adobe Reader.
• Fixed missing header/footer images in DOCX to PDF conversion (DrawingML and VML).