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PDF Expert vs KDAN PDF: catalog facts
PDF Expert	KDAN PDF
Freemium Reading and basic annotation are free. Editing features require a paid plan.	Freemium Reading and annotation are free. Editing and conversion require a paid plan.
macOS, iOS	Windows, macOS, Android, iOS
Genuine text and image editing inside the PDF, not just annotation Very fast on large documents, with a polished Apple-native interface	Consistent editing and annotation across desktop and mobile Cloud sync keeps documents and annotations together across devices
macOS and iOS only Editing, OCR and conversion require a paid subscription or licence	Editing and conversion need a paid subscription Closed source
Downloadable app	Downloadable app
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 22, 2026

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