API Showcase

Free

No Limits

Secure

Encrypt PDF

Add password protection to a PDF document.

Under Construction

This tool is currently being developed. Check back soon for a fully functional PDF processing experience powered by our technology.

How it works

  1. 1

    Upload your PDF

    Drag and drop or browse to select the PDF you want to protect.

  2. 2

    Set a password

    Choose a password that will be required to open the document.

  3. 3

    Download the encrypted PDF

    Download your password-protected PDF. The encryption runs entirely in your browser.

Frequently asked questions

When will this tool be available?
PDF encryption is coming soon. All other PDF tools — merge, split, organize, compress, image extraction, and font extraction — are available now.
Will my files be uploaded?
No. Like all our tools, encryption will run entirely in your browser using WebAssembly. Your files will never leave your device.
What encryption standard will be used?
The tool will support AES-256 encryption, the industry standard for PDF document protection.