Unlock PDF
Remove password protection from PDFs. Enter the password once and download an unlocked copy you can open anywhere — processed entirely in your browser.
Options
使い方
Upload your password-protected PDF
Enter the PDF password in the field
Download the unlocked PDF — no password needed to open it again
よくある質問
Can it crack unknown passwords?
No. This tool removes protection only when you supply the correct password. It cannot brute-force or crack unknown passwords.
Is my password sent to a server?
No. Everything runs in your browser using pdf-lib. Your PDF and password never leave your device.
What encryption types are supported?
Most standard PDF encryption (40-bit and 128-bit RC4, 128-bit and 256-bit AES) is supported via pdf-lib.
Can I unlock a PDF on my phone?
Yes. OneConvertly works in any modern mobile browser. Upload the PDF, enter the password, and download the unlocked copy.
Is there a file size limit?
Files up to 200MB are supported. Processing speed depends on your device since decryption runs locally in the browser.
Does unlocking change the PDF content?
No. The content, formatting, and quality remain identical. Only the password protection is removed from the copy.
Is this tool free to use?
Yes, completely free. No signup, no watermarks, no daily limits.