Unlock PDF
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Unlocking a PDF means removing the password and permission restrictions from a document you are already authorized to open, producing a copy with full access to view, print, copy, and edit. It requires the correct password; it is not a way to break into a file whose password is unknown.
At a Glance
1 Credit
Per Unlock
On-Device
Processing
Known Password
Requires
25 MB
Free File Limit
Key Facts
LittlePDF Unlock PDF decrypts entirely client-side in the browser, so neither the file nor the entered password is sent to a server.
The tool requires the correct password and removes both open passwords and owner-level permission restrictions; it does not crack or bypass unknown passwords.
Each unlock costs 1 credit; free accounts get 500 credits per day and a 25 MB file limit, while Pro supports files up to 500 MB.
How to Unlock PDF in 3 Steps
Drop the password-protected PDF into the upload area, or click to browse.
Type the password the document currently uses.
Click Unlock and download the copy with the password removed.
Why Unlock PDF with LittlePDF?
Decryption runs in your browser, so the PDF and the password you type both stay on your device.
Removes both the open password and owner-level restrictions on printing, copying, and editing.
It only unlocks files you have the password for, so it works as an authorized convenience, not a bypass.
One credit per unlock against 500 free credits a day keeps everyday use effectively free.
Features
Authorized Unlock Only
You enter the document's real password and the tool decrypts from there. It does not attempt to guess or break an unknown password, so it removes protection only from files you can already open.
Clears Restrictions Too
Beyond the open password, it lifts owner-level permission locks that block printing, copying, or editing, so the unlocked copy behaves like a normal, unrestricted PDF.
Password Stays Local
The password is used only in your browser to decrypt the file and is never sent over the network, logged, or stored. The original locked file is left untouched; you download a fresh unprotected copy.
Frequently Asked Questions
Last updated: June 2026