Free PDF Password Protection
Encrypt a PDF with a password before sharing sensitive documents. Use the tool below, set a password, then download the protected file.
Browser-based PDF encryption
Upload a PDF, set a password, and download a version that requires that password to open.
Your files are handled safely
✔ Processing happens in your browser
✔ Your file is never uploaded to a server
✔ Nothing is stored or saved anywhere
✔ No account or sign-up required
Why Use It
Add a layer of protection before emailing contracts, records, or financial documents.
Keep a file private even if the link or storage location is accessed by the wrong person.
Protect documents that should only be opened by the intended recipient.
How It Works
Choose the PDF file you want to protect.
Enter and confirm the password required to open the file.
Save the encrypted file and share the password separately with the recipient.
Trust & Privacy
This tool applies standard AES-256 PDF encryption using your browser's built-in Web Crypto API. Because the file and password never leave your device, there is no server-side copy of either one.
FAQ
The PDF is encrypted with AES-256, the standard PDF encryption method supported by modern PDF readers.
There is no way to recover it. Since the file never leaves your browser, we have no copy of your file or password to reset.
It works with modern PDF readers that support standard PDF password protection, including Adobe Acrobat and most browser PDF viewers.
No. Encryption runs entirely in your browser using the Web Crypto API. Your PDF is never uploaded to a server, and nothing is stored.
