Unlock PDF
Remove the password from a PDF, or lift the owner restrictions that grey out printing and copying. Type the open password once and unlock a whole batch.
The document
Drop a PDF and its pages show here
Document
Drop PDFs here
One file or a batch — it is unlocked on this device, so the password never leaves it
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The queue
Pages
The two locks, and only one asks anything of you
The lock
How to use
- Drop the locked file onto the Document box. Several at a time is fine if they share a password. The page says which lock a single file carries as soon as it lands.
- If it has an open password, type it into Open password; the eye button shows what you typed. For a file that opens normally but blocks printing or copying the field stays off, because nothing needs typing.
- Press Unlock PDF. A bar shows the run with a Cancel beside it, and a refused password is said in place, with the file left untouched.
- For one file, press Download. For a batch, use the download button on a row, or grab Download all (.zip).
- Open the copy and try printing and selecting text before you delete the original.
About this tool
A PDF can carry two very different locks, and people call both of them the password. The first one stops the file opening at all until you type something. The second lets it open freely but greys out printing, text selection and editing. Knowing which one you have in front of you is most of the job, because only the first kind asks anything of you before you can unlock the PDF.
The work is done by a WebAssembly build of qpdf, the same utility Linux admins have used for shuffling PDF internals for years. It gets run with a single flag, --decrypt, and writes out a copy of your document with the security layer gone. The wasm binary is 1.3 MB and downloads the first time you use the page, then stays cached. The password you type goes into qpdf and nowhere else.
Drop a single file and the page reads its lock straight away: an open password, owner restrictions only, or nothing at all. The answer is on screen before you press anything, so a file that opens freely is left alone instead of being rewritten for nothing, and one with restrictions only needs nothing typed. The picker also takes several files at once. Each is given what its own lock needs: the password you typed goes to the files that ask for one, the rest are run with nothing, a file that rejects the password is marked failed, and one with no lock is skipped. Download all (.zip) collects whatever succeeded into unlocked-pdfs.zip.
What comes back is your original name with -unlocked on the end, so statement.pdf becomes statement-unlocked.pdf. Pages, fonts, bookmarks and form fields all survive the trip untouched. One thing worth saying flat out: an open password you don't have is a dead end here, and that is on purpose.
A year of card statements
My card issuer emails statements as PDFs locked to my date of birth in DDMMYYYY. Opening one is no trouble. Searching a whole year of them at once is, because every file demands the password again before it will hand over a single line of text.
So all twelve go into the picker together, 14031988 goes into the password field once, and Unlock PDF runs down the list. Twelve rows come back marked opened with twelve download buttons, and Download all (.zip) saves the lot as unlocked-pdfs.zip. The statements read identically inside. They just open now.
Good to know
- An open password you don't know is where this stops. qpdf is handed the password you typed and nothing else, so there is no guessing and no wordlist behind the button. Standard PDF encryption comes off cleanly, but a corporate rights-management wrapper is a separate mechanism and survives. Unlock only what you are entitled to open.
Frequently asked questions
Do I need to know the password to unlock the PDF?
Only when the file asks for one before it will open, and the page tells you which kind you have the moment you drop it. Plenty of documents people describe as locked open on a double-click and merely block copying or printing, and those need nothing typed at all.
My PDF opens fine but won't let me copy text. What is that?
An owner password, sometimes called permissions or restrictions. The author set flags on the file asking readers to refrain from printing, extracting text or modifying it, and most viewers honor them. Running the document through here clears those flags along with the encryption around them.
Can it crack a password I've forgotten?
No. Nothing here attempts to work out a password, and a document you genuinely cannot open stays that way. If it's your own file, a password manager or the email that delivered it is a better place to look.
Is it legal to take the password off a PDF?
For your own documents, or ones you have permission to read, it is ordinary housekeeping. A bank statement you already open every month, or a report whose restrictions block editing you're meant to be doing, are the everyday cases. Files you have no right to access are a different matter, and removing protection from those is on you.
Will the pages look any different afterwards?
The document is rewritten with encryption removed and nothing else changed. Text stays selectable and searchable, images keep their resolution, page sizes hold, and outlines and annotations come through. File size usually shifts a little, because qpdf rebuilds the object streams on the way out.
Why does merging or compressing a protected PDF fail?
Most PDF libraries refuse to parse an encrypted document at all, so a batch you wanted to combine or shrink dies on the first locked file. Strip the protection here first and the rest of the pipeline runs without complaining.
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