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discreetpdf.com

Unlock a PDF

This isn't a password cracker: without the correct open password, the file won't open here either. A file that already opens but limits printing or copying is a different case: it has no open password to type, so drop it in and the restrictions come off on their own.

Files are processed entirely in your browser. Your file's contents never leave your device.

Your PDF never touches a server. There's nothing here to ration.

No daily caps. No spinner that turns into a paywall after the third file.

Private by architecture

Your PDF never leaves your device.

Unlimited use

No daily caps or hourly throttling on the tools themselves.

No signup, no watermarks

Every tool below works with or without an account.

Works offline

A tool you've already loaded keeps working offline.

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About this tool

Unlocking removes the password you have to type every time a PDF opens. Bank statements, card statements, phone bills, salary slips, e-Aadhaar and other government documents all tend to arrive locked. Sensible for delivery, annoying forever after. If you know the password, this opens the file with it and gives you back a copy that simply opens, free of the prompt and of any restrictions.

The same PDFium engine that runs the rest of this site opens the document with your password, then rewrites it with the security handler stripped out, so the copy carries no encryption at all. The file and the password live in memory and go nowhere. That part matters. A statement or a payslip spells out your income and your accounts, and no website operator has any business reading either.

The scope is narrow on purpose: this removes a password you already know. It cannot crack or guess one you don't have, and neither can any legitimate tool. What it handles is the common case, the document from your bank or employer that opens fine but that you're tired of unlocking. Your original stays put; the unlocked copy downloads as a separate file.

Frequently asked questions

Do I need to know the password?
It depends which password. If the file asks for one before it will open, then yes, you have to know it: this removes a password, it doesn't crack or recover one you don't have, and nothing legitimate does. If the file opens fine and only blocks printing or copying, that's an owner password and you don't need it. Drop the file in and the restrictions come off on their own.
Is my file or password uploaded anywhere?
No. PDFium opens the file locally with the password you type, which sits in memory only long enough to unlock it, then re-saves the file with its encryption stripped out, all inside the same tab. The whole exchange begins and ends on your own device, and the network panel backs it up.
Does it work on AES-encrypted PDFs, or only old ones?
Both. Old RC4 files and modern AES (128- and 256-bit) unlock the same way. Give it the right open password and the copy comes out fully decrypted.
What about a PDF that opens fine but blocks printing or copying?
That's an owner-password restriction, a different thing from an open password, and it is covered. Such a file still carries encryption inside, but there is no open password to type: the tool tries the empty one first, and when that opens the document it saves the copy with the encryption and its permission flags stripped out. You only see the password prompt for files that genuinely will not open without one.
Is the unlocked PDF identical to the original?
Yes. Same pages, same text, same layout, minus the encryption. Your original stays untouched on disk and the unlocked copy downloads under a new name.

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