No — it runs in your browser on any modern device. You can optionally install it as a lightweight app (PWA).

Is it safe on my phone?

Yes — your file is private to your account, sent over an encrypted connection, and never shared.

How to unlock a PDF on any device

Whether you’re on a laptop or a phone, you can unlock a PDF you own without installing any software — it all happens in your browser.

The steps are the same on every device; here’s what to know.