Encrypt/Decrypt PDF
Set an open password on a PDF, or remove encryption from a PDF using a known password.
Files are processed entirely in your browser and never uploaded to a server.
How to use
- 1
Upload a PDF file
- 2
Choose encrypt or decrypt and enter the password
- 3
Click the button and download the result
FAQ
Can a PDF be decrypted if I forgot the password?
No. This tool only removes encryption with a known password — there is no way to decrypt without it and no backdoor exists.
How strong is the encryption?
It uses the standard PDF encryption format, compatible with mainstream readers. Actual strength depends on your password, so use a sufficiently long one.