A free online redaction tool
Redaction software without the install. Find and permanently remove sensitive data from PDFs, right in your browser.
Drop a PDF here, or click to choose a file
Your file is processed in your browser and is never uploaded.
Traditional redaction software is desktop-bound, expensive and often leaves recoverable text behind. AnonymousPDF is a browser-based redaction tool: nothing to install, nothing to upload, and the redacted text is genuinely removed from the file.
It automatically detects sensitive data and blacks it out, then lets you download a clean PDF or copy the redacted text. Because it runs entirely on your device, it is safe to use even with confidential documents.
1. Drop your PDF
Choose a file or drag it onto the page. It opens locally — nothing is sent to a server.
2. Automatic detection
Pattern matching and an on-device AI model locate the sensitive text for you.
3. Download or copy
Get a redacted PDF with the text truly removed, or copy the cleaned text.
Frequently asked questions
Do I need to install anything?
No. It runs in any modern browser, on desktop or mobile.
How is this different from drawing black boxes?
Drawn boxes usually leave the text underneath intact and recoverable. This tool rebuilds the page so the content is actually gone.
Is it safe for confidential files?
Yes — files are processed locally and are never uploaded.
Is there a cost or limit?
It is free with no sign-up and no page limit.
100% in your browser
Files are processed on your device and never uploaded to any server.
Free, no sign-up
No account, no email, no watermark. Just open it and go.
Real redaction
The underlying text is removed, not just hidden behind a black box.