What encryption is applied?

128-bit AES encryption — the current PDF standard.

Is the password stored anywhere?

No. Encryption happens locally in your browser — the password is never sent anywhere.

Yes — set an open password for readers and an owner password to control permissions.

Process files up to the browser memory limit.

Yes — granular permission controls let you allow/deny printing, copying, and editing separately.

Add a password to a PDF to prevent unauthorized opening or editing. The safest way to process sensitive data with zero-upload

Your files never leave your device. Processed locally. 100% private.

Unlocking Tool Engine...

Complete your task perfectly in just three straightforward steps.

Drop your PDF file.

Enter an open password and optionally restrict printing, copying, and editing.

Download the password-protected PDF.

Everything you need to know about the Protect PDF.

Continue working with our suite of free data utilities.

Combine multiple PDF files into one. Drag to reorder pages before merging. Processed entirely in your browser for 100% data p

Split a PDF into individual pages or extract a custom page range. The safest way to process sensitive data with zero-upload,

Reduce PDF file size by up to 80% while preserving readability. No upload required. Processed entirely in your browser for 10