There are two kinds of locked PDF, and yours is probably the easy one
Almost everyone arriving here has one of two very different files and no way to tell which. Either the PDF opens fine but refuses to let you print, copy or edit, or it will not open at all without a password. Those are not two degrees of the same lock. They are different mechanisms with different answers, and most tools in this category avoid saying so because the honest version reads less magical.
If it opens but blocks printing or copying
No password needed. None. Those blocks are permission flags written onto a document that is already readable by every reader on earth, which is exactly why it opened for you. Your PDF reader is choosing to obey a note stapled to the file. Upload it here and the note is gone, with every one of the format's eight permissions reading allowed in the file you get back.
This is the majority case, and it is the one people are most surprised by. Nothing was ever really locked.
If it will not open without a password
That is real encryption, and the password is required. Supply it once and the file comes back with the encryption gone: we tested this on a 15 page document locked with AES-256, and the output carried no encryption dictionary at all, no cipher entry, and all fifteen pages intact.
What this tool will never do is guess. There is no brute force here, no dictionary attack, no recovery theatre. A tool that guesses passwords is either lying about how it works or running an attack on a file that may not belong to the person running it.
| Your file | What it actually is | What unlocking needs |
|---|---|---|
| Opens, but print or copy blocked | Permission flags, advisory | Nothing. No password |
| Will not open, asks for a password | Real encryption, often AES | The password, once |
| Opens after a password, then blocks printing | Both at once | The password, once. Everything comes off together |
You are told which one you have before anything runs
Drop an encrypted file in and it is flagged immediately, on the file card, before you click anything: a password is required and the button stays disabled until you provide one. Drop in a restricted file and there is nothing to provide. You are not left guessing which situation you are in, which is the part that wastes people's afternoons elsewhere.
Missing password and wrong password are two different answers
They get two different messages here, on purpose. Password required means the file is encrypted and none arrived: type the one it was locked with. Password incorrect means one arrived and the file's encryption rejected it: check for typos, keyboard layout, or the password of a different revision of the same document. In a batch, either message names the exact file it belongs to, so twenty files never fail anonymously because of one. Both cases are common and they need different next moves, so a single vague error would just cost you the next five minutes.
The report is the part nobody else gives you
Other unlockers hand you a file and a shrug. This one tells you what was on it: whether the file was restricted or encrypted, what encryption was found, which restrictions were removed, and which permissions were never blocked in the first place. Then it verifies rather than assumes. The finished file is reopened and must demand no password, carry no encryption, and deny nothing. A file that fails any of those checks fails the job instead of reaching you as something you wrongly believe is clean.
Is this legal?
Unlocking your own documents is the ordinary case this exists for: the invoice your accounting system cannot ingest because of a permissions flag, the archived contract whose password you still have, the form your scanner locked by default. Defeating protection on documents you have no rights to is not, which is exactly why there is no brute force mode. No password, no unlock, no exceptions.
What happens to your files
Any password you type is used to open the file and then dropped; it is never stored. Your unlocked file is deleted from the server an hour after it is ready, and the job record an hour after that, so a late download gets a clear expired message rather than a mystery. No account, no watermark.
What you get
- Restricted files unlocked with no password at all, which is most files
- Encrypted files unlocked with their own password, verified clean afterwards
- Your file classified before anything runs, so you know which case you have
- Password required and password incorrect as two distinct answers, naming the file
- A report of what was removed and what was already allowed
- No password guessing, ever, and files deleted from the server an hour later
What's next?
If you want the lock back on afterwards, Lock PDF applies AES-256, which is likely stronger than what the file had. An unlocked file is also finally free to shrink with Compress PDF, and if the document is too damaged to open at all rather than merely locked, Repair PDF is the tool for that.