🔐
Protect PDF
Add a password to any PDF before sharing it. Recipients will need the password to open it. Everything happens in your browser — your document is never uploaded.
📁 Drop a PDF here or click to choose
Stays on your device.
Enter a password
How to add a password to a PDF
1
Upload PDF
Drop in the document to protect.
2
Set a password
Choose something strong.
3
Download
A protected PDF — share safely.
How it works: Vootkit uses the pdf-lib library to load your PDF and re-save it with 128-bit RC4 password encryption (PDF standard 1.4). Your password is never sent to a server — the entire process happens locally in your browser. Keep your password somewhere safe — there's no way to recover it.