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PDF Annotator vs Xodo: catalog facts
PDF Annotator	Xodo
Paid Paid software with a free trial.	Freemium Reading and annotation are free. Editing and conversion quotas require a paid plan.
Windows	Windows, Android, iOS, Web
Handwritten annotations with pen and touch on tablet PCs Annotations saved into the original PDF and viewable anywhere	The same annotation and signing tools on web, desktop and mobile Works directly against Google Drive, Dropbox and OneDrive
Windows only Paid after the trial	Conversion and advanced editing are limited without a paid plan Closed source, and online tools process files on their servers
Downloadable app	Downloadable app, Web application
Closed source	Closed source
License not stated	License not stated
No account needed	Not stated if an account is needed
Works offline	Not stated if it works offline
Official website Full listing and sources Checked October 1, 2026	Official website Full listing and sources Checked September 22, 2026

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