PDF Password
A PDF password tool encrypts a PDF with a password (or removes an existing password when you supply it), using AES encryption performed entirely in the browser so the document and its password never reach a server.
Drop a file here, or
About PDF Password
Two modes. Add a password encrypts the PDF with AES via the @cantoo/pdf-lib fork, setting a user password required to open it plus optional permission flags. Remove a password loads a protected PDF with the password you provide and saves a clean, unprotected copy. Both run locally — the file and the password stay in your tab, which is the whole point when the document is a contract, statement, or medical record.
What PDF Password does
- Add an AES password that's required to open the PDF
- Remove a known password and save an unprotected copy
- Set permissions (printing, copying, modifying)
- File and password never leave your browser
- Works offline once the page has loaded
When to reach for PDF Password
- Encrypting a contract before emailing it
- Removing a password from a statement you already unlock daily
- Protecting an exported report with a shared password
- Locking ID or medical scans before storing them
How to use PDF Password
- 01
Pick a mode
Choose Add password or Remove password.
- 02
Load and enter the password
Drop the PDF and type the password to set, or the current password to remove.
- 03
Download
Download the encrypted or unprotected PDF.
When to use PDF Password vs alternatives
| Alternative | Use PDF Password when… | Use the alternative when… |
|---|---|---|
| Online lock/unlock PDF sites | you refuse to upload a confidential file (and its password) to a third party. | you've forgotten the password and need a recovery service — this tool can't crack passwords. |
| `qpdf --encrypt` CLI | you want a browser UI on any device. | you're scripting batch encryption. |