Protect PDF
Encrypt a PDF with a password so only people with the password can open it. Encryption happens locally in your browser.
Drag & drop files here
or browse to choose a file
🔒 Processed on your device — never uploaded
How to protect pdf
- 1
Upload your PDF.
- 2
Choose a password.
- 3
Download the encrypted PDF.
100% on your device
Your files are processed right here in your browser and are never uploaded to any server.
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Frequently asked questions
Are my files uploaded to a server?＋
No. Every operation runs entirely inside your browser using WebAssembly and JavaScript. Your files never leave your device and nothing is uploaded, stored, or seen by us.