Protect PDF
Add a password before you share a sensitive document.
Private on your deviceWe never see your filesFree, no sign-up
Add a PDF here
PDF must not already be password-protected
Common questions
- Do you see my password?
- No. Your PDF and password stay on your device. We never receive them.
- Can I recover the password if I forget it?
- No. Keep your password safe — we cannot reset it because we never have access to your file.
- Can I protect an already locked PDF?
- Unlock it first with Unlock PDF, then add a new password here.
You might also need
Unlock PDF
Remove password protection when you know the password. No guessing.
Merge PDF
Combine multiple PDFs into one file. Put documents in order — free, private.
Compress PDF
Make PDFs smaller for email. Pick a compression level and download.
JPG to PDF
Combine JPG or PNG photos into one PDF. Set page size and order.