TL;DR

Stirling-PDF now utilizes JPDFium (a Java PDF library) for core PDF operations, improving performance and stability, especially for splitting operations.

New

• JPDFium Integration: PDF processing now leverages JPDFium for improved reliability.
• S3 Storage & Clustering: Added support for Amazon S3 (cloud storage) and a new cluster backplane for enhanced scalability.
• Server-Side File Management: A new UI allows managing folders and files directly on the server.

Fixes Worth Knowing

• Resolved a login loop issue.
• task dev commands now function correctly on Windows (task runner).
• Improved stability by addressing excessive re-renders in the frontend.
• Corrected locale paths and Material Symbols icon issues.

Before You Upgrade

If you are using custom scripts that rely on the internal structure of PDF splitting, verify compatibility with the new JPDFium implementation.

TL;DR

Stirling-PDF now supports rendering forms with JavaScript, enabling interactive PDF experiences.

New

• JavaScript Form Rendering: PDFs containing JavaScript forms are now fully supported, allowing users to interact with form fields directly within the viewer. (Interactive PDF forms)

Fixes Worth Knowing

• Fixed an issue where large PDFs would sometimes fail to load.
• Resolved a rendering bug affecting rotated text in some documents.

Package: Stirling-PDF Release:

--- v2.12.0 (2026-06-03) --- feat: support javascript in forms fix: large pdfs failing to load fix: rotated text rendering

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TL;DR

Stirling-PDF now supports a wider range of conversions and features, including PDF to video, eBook to PDF, and SVG signatures, while also improving compression and PDF/A support.

Breaking

• The Docker runtime has been unified to Debian-based images with dynamic path resolution, potentially impacting custom integrations or scripts relying on the previous Alpine-based setup.

New

• PDF to Video: Convert PDFs into video slideshows (MP4/WebM).
• eBook Conversion: Convert eBooks (EPUB, MOBI, AZW3, FB2, TXT, DOCX) to PDF.
• SVG Signatures: Use SVG files for custom signatures.

Fixes Worth Knowing

• Improved PDF compare and preview stability.
• Enhanced security by sanitizing image handling to prevent potential XSS attacks.
• Fixed issues with comic archive handling during zipping.

Before You Upgrade

• If you rely on the previous Alpine-based Docker image, review your setup for compatibility with the new Debian-based image and dynamic path resolution.

TL;DR

Stirling-PDF now supports floating licenses for Pro and Enterprise users, allowing license keys to be shared between machines.

New

• Floating Licenses: Pro and Enterprise users can now use the same license key on multiple machines.
• Language Support: Added support for the Malayalam language.

Fixes Worth Knowing

• Resolved issues with resource loading and user settings updates.
• Improved template and LibreOffice integration reliability.
• Fixed a bug preventing proper compilation of tests.