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Xodo vs UPDF: catalog facts
Xodo	UPDF
Freemium Reading and annotation are free. Editing and conversion quotas require a paid plan.	Freemium Free to try, with paid plans for the full feature set.
Windows, Android, iOS, Web	Windows, macOS, Android, iOS, Web
The same annotation and signing tools on web, desktop and mobile Works directly against Google Drive, Dropbox and OneDrive	Apps for desktop and mobile platforms Editing, OCR, conversion and redaction in one app
Conversion and advanced editing are limited without a paid plan Closed source, and online tools process files on their servers	Proprietary, with full features behind a paid plan The AI features rely on an online service
Downloadable app, Web application	Downloadable app, Web application
Closed source	Closed source
License not stated	License not stated
Not stated if an account is needed	Not stated if an account is needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked September 22, 2026	Official website Full listing and sources Checked September 23, 2026

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