Quick answer. Choose the PDF, type the password you were given, and press Unlock PDF. You get a copy that opens without a password. Everything happens in your browser, and this tool never guesses passwords.
How to unlock a PDF
- Choose the file. The tool checks what kind of protection it has.
- Type the password if the PDF asks for one, then press Unlock PDF. Use Show to check what you typed.
- Download the unlocked copy. It is called unlocked-yourfile.pdf. Before the download button appears, the copy is checked to make sure it really opens with no password.
Keep the original if you still need a protected version. The file you chose is not changed.
You must know the password
A PDF with an open password is encrypted: the password is the key that turns it back into readable pages. This page only works when you type that key. There is no “unlock without a password” mode, no word lists and no repeated guessing. Each press of the button checks the one password you typed, once. If it is wrong, you see a plain message and nothing else happens.
Some PDFs open without a password but block printing, copying or editing. In that case the tool tells you which actions are blocked and offers to save a copy without those restrictions. That is allowed here because the file was already readable; it is not password cracking.
A few files are protected with a certificate or a digital-rights system instead of a password, for example some company documents and e-books. Those can only be opened with the software and certificate they were made for, and this tool tells you so instead of failing silently.
What changes in the unlocked copy
- The pages, text, images, links and form fields stay as they were. The copy is not converted to images.
- The password and any printing or copying restrictions are removed.
- If the file carried a certificate-based digital signature, that signature will not validate on the new copy, because the file has changed. The PDF Editor and other tools have the same limit.
Privacy
The file and the password stay in this browser tab. The decrypting is done by qpdf, an open-source PDF library, compiled to WebAssembly and hosted on this site, so nothing is sent to a server. The password is held only in the password box and in memory while the job runs. It is never saved in your browser, never put in the address bar and never included in analytics, and it is cleared when you press Start over or leave the page. Microsoft Clarity session recording is switched off on this page.
After unlocking
Open the unlocked copy in the PDF Editor to rotate or reorder pages, sign it, add a watermark, merge it with other files, or compress it for email.
Frequently asked questions
Is this unlock PDF tool free?
Yes. There is no account, no watermark and no limit.
Do I need to know the password?
Yes, if the PDF asks for one when it opens. We do not guess or recover forgotten passwords.
Can you unlock a PDF without the password?
No. That would be cracking, which this tool does not do. If you have lost the password, ask the person or company that sent you the file for a new copy.
Is my PDF or password uploaded?
No. Decrypting happens in this browser tab. The password is never saved, put in the address bar or sent anywhere, and it is cleared when you press Start over or leave the page.
Can I use this on any PDF I find?
Only on a file you own or are allowed to open. Using a password you are not authorised to use is not permitted.
What about files that open but cannot be printed or copied?
Those restrictions can be removed from a new copy, because the file was already readable without a password. That is not password cracking.
Can I edit the unlocked file next?
Yes. Open the download in the PDF Editor, or merge, compress, sign or watermark it with the other PDF tools.