Unlock PDF
SecurityStrip the password from a PDF you own. Enter the current password and download an unlocked copy. 100% in your browser — your file and password never leave your device.
How to use Unlock PDF
- Open this page in any modern web browser — no download or installation required.
- Click Add file or drag and drop your PDF onto the drop zone.
- Adjust the available settings to fit your needs.
- Click the action button and save the processed file — the result is ready instantly.
Files never leave your browser. No upload to any server.
Processing runs locally on your device. No queues, no waiting.
No signup, no watermarks, no limits. Use as many times as you like.
Why use Unlock PDF on PDF Modern?
PDF Modern’s unlock pdf tool processes your file entirely within your web browser using modern WebAssembly technology. Unlike traditional online PDF services that require uploading your documents to remote servers, your files never leave your device — ensuring complete privacy and security. Processing happens at the full speed of your CPU, not limited by upload or download bandwidth, so even large files are handled in seconds. There are no file-size restrictions, no daily usage caps, no watermarks on output, and no account creation needed. It is a fully free, open tool built for everyday document workflows at home, school or the office.
Frequently asked questions
Do I need to know the password?
Yes. This tool removes a password you already know — it does not crack PDFs.
Is my password sent anywhere?
No. Decryption happens entirely in your browser. Nothing is uploaded.
What encryption is supported?
Standard PDF user/owner passwords (RC4 and AES up to 256-bit).