Unlock PDF

PDF unlocking happens entirely in your browser using JavaScript. When you upload a password-protected PDF, we load it locally using pdf-lib with the password you provide. The library decrypts the document in memory, then saves a new unlocked copy. No data is ever sent to any server — your file and password remain on your device at all times.

Yes, absolutely. Your password is never sent anywhere — it is only used locally in your browser to decrypt the PDF. There are no server requests, no data logging, and no storage of your password. The entire process happens in-memory and is discarded when you close the page.

The tool supports PDFs protected with standard document open passwords (user passwords required to view the file) and permissions passwords (owner passwords that restrict printing, editing, etc.). The underlying pdf-lib library handles both RC4 and AES encryption methods common in PDF standards.

Some PDFs use newer or proprietary encryption methods that may not be supported by the browser-side pdf-lib library. If you encounter this error, the PDF may use Adobe's AES-256 encryption or a third-party DRM solution. For these files, we recommend using Adobe Acrobat or another desktop application.

Yes. Upload the PDF and enter the owner (permissions) password. The tool will create a new unlocked version without usage restrictions. Note that we cannot bypass or crack passwords — you must know the correct password to unlock the file.

No. The decryption process preserves the original PDF content exactly. Pages, images, fonts, formatting, and all other content remain unchanged. The only difference is that the output PDF no longer requires a password to open.

If the password is incorrect, the decryption will fail and you'll see a clear error message. Simply try again with the correct password. The tool does not limit the number of attempts, and your original file remains untouched.

The tool processes one PDF at a time. After unlocking a PDF, you can use the 'Unlock Another' button to start over with a new file. This ensures each document receives full attention and the correct password.

The tool supports PDFs up to 250MB. Larger files may take longer to process but will still work as long as your browser has sufficient memory. If you experience performance issues, try closing other tabs to free up memory.

Yes. Once the page has loaded and the pdf-lib library has been fetched, all unlocking functionality works without an internet connection since everything runs locally in your browser.