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PDF4QT vs RevPDF: catalog facts
PDF4QT	RevPDF
Free Free and open source; donations are accepted through GitHub Sponsors.	Free Free with all desktop features included, no account or subscription.
Windows, Linux, Command line	Windows, macOS, Linux, Android
Viewing and editing applications in one project Command-line tool for scripted PDF work	Processes documents locally without uploading Edits existing text and images
No macOS version Mostly the work of a single principal developer	Developer details are not given on the site
Downloadable app	Downloadable app
Open source	Closed source
License: MIT	License not stated
No account needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked October 1, 2026	Official website Full listing and sources Checked October 1, 2026

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