Unlock PDF removes password encryption from a PDF when you already know the current password. It is meant for your own files or documents you are authorised to edit — it does not guess, crack or bypass an unknown password.
The decryption runs locally in the browser using qpdf. A correct password is required, and the output is a new unencrypted PDF.
How to use
Choose a PDF you are authorised to unlock.
Enter the document's current password.
Create the unlocked copy and verify it opens normally before relying on it.
FAQ
Can this recover a password I forgot?
No. The tool requires the correct existing password and does not brute-force, guess or bypass unknown credentials.
Does unlocking change the visible pages?
The purpose is to remove encryption, not to redesign the document. Always compare the result if the file is important.
Is the password sent anywhere?
No. The password and PDF are handled locally by the browser tooling.
Is it legal to unlock any PDF?
Use the tool only for files you own or have permission to modify. Password protection can reflect access rights that you should respect.