Unlock PDF
Enter the password you know to unlock a protected PDF and save an unrestricted copy. The entire unlock operation runs locally — your password and file never leave your device.
or drop files here
Tip: select a single file.
How to use Unlock PDF
- 1Click "Select PDF file" and choose the password-protected PDF you want to unlock.
- 2Enter the document password when prompted.
- 3Click Unlock PDF. The restrictions are removed in your browser and the unlocked file is downloaded.
Why use PDF Lab
- Remove password protection and usage restrictions from PDFs you own.
- Files stay on your device — nothing is uploaded to any server.
- No account, no signup, no watermark on the output.
- Free to use with no per-file limits beyond your device's memory.
- Works on desktop and mobile browsers, including offline after first load.
- Unlocking happens entirely in your browser — your password is never transmitted.
Your file never leaves your browser
Unlock PDF runs entirely on your device using pdf-lib and pdf.js — both self-hosted by PDF Lab, so no third-party CDN sees your traffic. There is no upload, no account, no log of your file.
How browser-based PDF processing works →Unlock PDF — questions
- No. Every operation runs in your browser using JavaScript. Your file is loaded into your browser's memory, processed, and a result is saved to your device. Nothing is sent over the network.
- No. Because the processing happens in your browser, neither PDF Lab nor any third party has access to the file contents. You can verify this by opening your browser's network tab while using the tools — no file data is transmitted.
- There is no enforced limit, but performance depends on your device's memory. Most modern browsers comfortably handle PDFs up to about 100 MB. Very large files may slow down your browser tab.
Are my files uploaded to your server?+
Can PDF Lab see the contents of my files?+
Are there file size limits?+
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