Lock & Unlock PDF
Add password protection to any PDF, or remove it instantly. Everything runs in your browser — your files never leave your device.
Drop your PDF here
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PDF onlyHow to Unlock a PDF
Upload Your PDF
Click the upload area or drag and drop the password-protected PDF.
Enter Password (if needed)
If your PDF requires a password to open, enter it in the password field. For owner-restricted PDFs, leave it blank.
Remove Protection
Click "Remove Password Protection" and the tool will strip the encryption from the PDF.
Download
Download your unlocked PDF — it can now be opened, printed, and edited freely.
Frequently Asked Questions
A user password (also called an open password) is required just to view the PDF — if you try to open it, you are immediately prompted. An owner password is used to restrict actions like printing, copying text, or editing. Owner-restricted PDFs can usually be unlocked without entering any password.
Yes. Everything happens in your browser using the PDF-lib JavaScript library. Your file and any password you enter are never sent to any server. They remain entirely on your device.
The tool supports common PDF encryption formats including RC4 40-bit, RC4 128-bit and AES 128-bit used in most everyday PDFs. Very old or heavily customized encryption formats may not be supported.
If the tool fails, the most likely reason is an incorrect user password, or that the PDF uses a non-standard or very strong encryption scheme. Make sure you enter the correct password if the file requires one to be opened. Also, this tool cannot guess or crack unknown passwords — you need to know the correct password.