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PDF4QTMaster PDF Editor
Free

Free and open source; donations are accepted through GitHub Sponsors.

 Freemium

An unregistered version offers limited non-commercial functions. Full editing requires a…

Windows, Linux, Command line Windows, macOS, Linux
  • Viewing and editing applications in one project
  • Command-line tool for scripted PDF work
  • One of the few complete PDF editors with a real Linux build
  • Handles forms, signatures and OCR alongside content editing
  • No macOS version
  • Mostly the work of a single principal developer
  • The unregistered version is limited and for non-commercial use only
  • Closed source
Downloadable app Downloadable app
Open source Closed source
License: MIT License not stated
No account needed Not stated if an account is needed
Works offline Not stated if it works offline

Checked October 1, 2026

Checked September 22, 2026

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