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PaperKnife+MobiPDF
Free

Free and open source under the GPL-3.0 licence.

 Freemium

Free download with paid plans for the full feature set.

Android Windows, Android, iOS
  • Works fully offline with no trackers
  • Merge, split, rotate and rearrange pages
  • Editing, signing, OCR and conversion in one app
  • Apps for Windows, Android and iOS
  • Android only
  • No text editing or annotation listed
  • No macOS or Linux desktop version
  • Many features require a paid plan
Downloadable app Downloadable app
Open source Closed source
License: GPL-3.0 License not stated
No account needed Not stated if an account is needed
Works offline Not stated if it works offline

Checked October 2, 2026

Checked October 1, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.