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PDF-XChange Editor vs Nitro PDF Pro: catalog facts
PDF-XChange Editor	Nitro PDF Pro
Freemium Most features are free. Some tools add a watermark unless you buy a licence.	Paid A paid licence or subscription is required after the trial.
Windows	Windows, macOS
Most features work in the free version rather than being blocked Fast rendering and a genuinely capable annotation toolset	Office-style interface with strong Word and Excel conversion Editing, OCR, redaction and signing in one licence
Paid-only features watermark output rather than being hidden Windows only, closed source	Paid licence with no free tier beyond a trial Windows and macOS only
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.