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Stirling PDF

PDF application that lets you edit PDFs on any device, anywhere

Alternative to: adobe acrobat, smallpdf, ilovepdf

Stirling PDF screenshot

About Versions (100)

v2.9.0

2026-04-02

Lots of changes in this release!

We have added server-side file sharing and group signing (Both visual and certificate) So Stirling PDF can be used for group signatures! Both the file sharing and signatures is a Alpha feature, so please be careful in testing and report all bugs you can! These are all off by default. Check out the docs for File Sharing and Storage and Shared Signing

We also added a ton of other features and bug fixes in this release such as

  • Dark mode colour filters for your PDF in the viewer (visually (temporarily) changes the colour of the PDF so it can be read more easily)
  • Accounts blocked due to incorrect password attempts can now be unblocked sooner by admins
  • Non PDF files should now be supported in the viewer, (CSV, JSON, MD, PNG etc should all show in the viewer)

Fixes for:

  • QR code splitting not working for certain PDFs
  • CPU usage issues
  • Redact API issues
  • Redact UI issues

We also had many security fixes in this release and some removal of old dependencies, so we advise users to update when possible!

What’s Changed

Minor Enhancements

Docker Updates

Other Changes

New Contributors

Full Changelog: https://github.com/Stirling-Tools/Stirling-PDF/compare/v2.8.0…v2.9.0