IronPDF for Python Versioni

Iron SoftwareStrumenti PDFDLL di Windows
Versione 2026.x (4 ago 2026)

Scopri le novità in ogni release, con dettagli su funzionalità, miglioramenti e problemi risolti.

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IronPDF for Python 2026.6.0.126 mag 2026
Funzionalità
  • Added AdvancedCompressionOptions for fine-grained PDF compression control, including image DPI downsampling, JPEG quality settings, structure-tree removal, and customizable optimization flags.
  • Added PdfDocument.SetFormFont, SetFormFontFromFile, and DisableFormFontFallback APIs to control or suppress automatic form-field font embedding.
  • Added ECDSA PDF signature support with correct SHA/OID mappings for reliable verification and signing of EC-signed PDFs.
  • Updated internal dependencies.
Correzioni
  • Fixed invisible or missing headers and footers on scanner-generated and browser-printed PDFs.
  • Fixed an issue where CopyPages could drop form fields with shared widget annotations across multiple pages, causing visible fields to disappear in copied documents.
  • Fixed incorrect Table of Contents page numbers for long headings that wrapped across multiple rendered lines.
  • Fixed excessive PDF size growth when combining static content headers/footers with dynamic content in large documents.
  • Fixed IronPdfEngine queue deadlocks under concurrent load.
IronPDF for Python 2026.4.0.1Versione principale31 mar 2026
Funzionalità
  • 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).
Correzioni
  • 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).