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PDF Toolkit vs UPDF: catalog facts
PDF Toolkit	UPDF
Free Free and open source under the Apache-2.0 licence.	Freemium Free to try, with paid plans for the full feature set.
Android	Windows, macOS, Android, iOS, Web
Works fully offline on the device Merge, split, compress and page editing in one app	Apps for desktop and mobile platforms Editing, OCR, conversion and redaction in one app
Android only No tagged releases on GitHub	Proprietary, with full features behind a paid plan The AI features rely on an online service
Downloadable app	Downloadable app, Web application
Open source	Closed source
License: Apache-2.0	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 2, 2026	Official website Full listing and sources Checked September 23, 2026

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