2026.4.1

IronPdf for Java v2026.4.1

Enhancements

• Improved PDF rendering performance by reducing internal render calls and reusing browser tabs to minimize startup overhead
• Added compressAndSaveAs() method to compress a PDF and save it directly to a file path
• Deprecated compressImages() in favor of compressAndSaveAs(), compressPdfToBytes(), and compressPdfToStream()

Bug Fixes

• Fixed memory leak in replaceText() where repeated calls caused increasing memory growth (93–97% reduction)
• Fixed buffer over-read in metadata retrieval 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

2026.3.1

IronPdf for Java v2026.3.1

Features

• Added CompressPdfToBytes and CompressPdfToStream with automatic smart compression, reducing PDF size via disk or in-memory processing

Enhancements

• 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

Bug Fixes

• 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 cutoff
• 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

2026.2.1

IronPdf for Java v2026.2.1

Release Notes

• Updates engine to 2026.2.1

2026.1.3

IronPdf for Java v2026.1.3

Release Notes

• Enhancements
  • Enhanced UpdateImageObject with a robust state-tracking transformation system
  • Enhanced copying pages from existing PDF to avoid Stack Overflow exception for some specific documents
• Bug Fixes
  • Fixed issue where getting a form field with unicode characters causes IronPDF to freeze
  • Fixed an issue where converting certain PDFs to PDF/UA could cause text and shape colors to be reset or rendered incorrectly
  • Fixed an issue where flattening a PDF caused content to disappear or become clipped in documents using non-standard CropBox offsets
  • Fixed a compliance issue where PDF/A-4 exports failed validation due to forbidden Unicode values in ToUnicode CMaps
  • Fixed a System.AccessViolationException crash when processing malformed font Widths arrays in certain PDFs
  • Fixed a crash (Access Violation) when rendering pages with complex or malformed form fields
  • Fixed an issue where rectangles were drawn at the incorrect Y position
  • Fixed an issue where HTML headers and footers with flex-based layouts did not adapt correctly to different page orientations
  • Fixed an issue where HTML headers and footers rendered with incorrect height and font scaling when added post-render

2025.12.2

IronPdf for Java v2025.11.12

Release Notes

• Features:
  • Added support for PDF/UA-2 (ISO 14289-2:2024) Compliance
• Enhancements:
  • Enabled local HTML file to PDF conversion
• Updates:
  • Updates IronPdfEngine to 2025.12.2
• Bug Fixes
  • Fixed issue where ApplyMultipleStamps cut off the stamp content on some paper sizes

2025.11.12

IronPdf for Java v2025.11.12

Release Notes

• Updates engine to 2025.11.12

2025.10.8

IronPdf for Java v2025.10.8

Release Notes

• Updates engine to 2025.10.8

2025.9.4

IronPdf for Java v2025.9.4

Release Notes

• Updates engine to 2025.9.4
• Fixed an issue where using removePages and prependPdf would cause other document features (such as headers, footers, or annotations) to not appear.

2025.8.8

IronPdf for Java v2025.8.8

Release Notes

• Updates engine to 2025.8.8

2025.7.17

IronPdf for Java v2025.7.17

Release Notes

• Updates engine to 2025.7.17