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PDF Expert vs UPDF: catalog facts
PDF Expert	UPDF
Freemium Reading and basic annotation are free. Editing features require a paid plan.	Freemium Free to try, with paid plans for the full feature set.
macOS, iOS	Windows, macOS, Android, iOS, Web
Genuine text and image editing inside the PDF, not just annotation Very fast on large documents, with a polished Apple-native interface	Apps for desktop and mobile platforms Editing, OCR, conversion and redaction in one app
macOS and iOS only Editing, OCR and conversion require a paid subscription or licence	Proprietary, with full features behind a paid plan The AI features rely on an online service
Downloadable app	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.