Protect PDF

Add password encryption to a PDF entirely inside your browser.

100% Client-Side · Zero-Server-Upload · 100% Private

Drop PDF files here or tap to browse

Everything runs on your device. Nothing is uploaded.

How it works

1Drop a PDF file.
2Type your password twice.
3Process and download the protected PDF.

Are my files uploaded to a server?

Never. Every tool runs inside your browser using WebAssembly and Web Workers. Your files stay on your device and are wiped from memory as soon as you download the result.