Hide information in a PDF
Automatically find and remove the information you do not want to share from a PDF — without uploading the file.
Drop a PDF here, or click to choose a file
Your file is processed in your browser and is never uploaded.
Sometimes you need to share a document but keep parts of it private — a name, an address, an account number. AnonymousPDF finds that information automatically and removes it from the file, so what is left is safe to send.
It recognises contact details, financial and ID numbers, IP addresses, dates and — via an on-device AI model — names, organisations and locations. Hidden values are replaced with neutral placeholders, and because everything runs in your browser, the original information is never transmitted.
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 hidden information removed or just covered?
Removed. The PDF is rebuilt without the original text, so it cannot be recovered.
What can it hide?
Names, organisations, emails, phone numbers, IBANs and cards, IP addresses, ID and case numbers, and dates.
Does my file get uploaded?
No — processing is entirely local to your browser.
Is it really free?
Yes, free and no sign-up.
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.