Security
Upload one or more PDFs, set a password, and each file is encrypted using the standard PDF security handler — the same kind of protection built into Acrobat, Preview, and virtually every PDF reader.
How to use Protect PDF
- Add one or more PDF files.
- Type the password you want to lock them with.
- Tap Run and download the protected file(s).
FAQ
Will it really ask for a password when I open it?
Yes — this adds real encryption per the PDF specification (not a cosmetic lock screen), so any standard PDF reader will prompt for your password before showing the content.
What if I forget the password?
There's no recovery — the password isn't stored anywhere by gptpayer. Keep it somewhere safe.
Can I remove a password later?
Yes, use Unlock PDF with the same password to get an unprotected copy back.