Redact PDF online — free and permanent
Black out sensitive information and remove it from the file for good. Your PDF is processed in your browser and never uploaded.
Drop a PDF here, or click to choose a file
Your file is processed in your browser and is never uploaded.
Redacting a PDF means more than drawing a black rectangle over a name. If the text underneath is still there, anyone can copy it out or search for it. AnonymousPDF removes the underlying content entirely, so redacted information cannot be recovered.
Upload a document and the tool automatically finds sensitive data — email addresses, phone numbers, IBANs and bank-card numbers, ID and case numbers, plus names and organisations — and blacks them out. Everything runs locally on your device; no file ever leaves your browser.
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
Is the redaction permanent?
Yes. The page is rebuilt so the redacted text is no longer part of the file — it cannot be copied, searched or recovered, unlike a black box drawn over live text.
Are my files uploaded anywhere?
No. All processing happens in your browser on your own device. Your document is never transmitted to us or anyone else.
Is it really free?
Yes — no account, no email, no watermark and no page limits.
What does it detect automatically?
Emails, phone numbers, IBANs, card numbers, IP addresses, URLs, common ID and case numbers, and — via an on-device AI model — names, organisations and locations.
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.