Compare software

Nitro PDF Pro vs Censor: catalog facts
Nitro PDF Pro	Censor
Paid A paid licence or subscription is required after the trial.	Free Free and open source under the AGPL-3.0.
Windows, macOS	Linux
Office-style interface with strong Word and Excel conversion Editing, OCR, redaction and signing in one licence	Single-purpose tool for PDF redaction Native GTK4 and Adwaita interface
Paid licence with no free tier beyond a trial Windows and macOS only	Linux only Does only redaction, not general PDF editing
Downloadable app	Downloadable app
Closed source	Open source
License not stated	License: AGPL-3.0-only
Not stated if an account is needed	No account needed
Not stated if it works offline	Works offline
Official website Full listing and sources Checked September 22, 2026	Official website Full listing and sources Checked October 1, 2026

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