Why protect a PDF with a password?
Contracts, payslips, IDs and medical records shouldn't be readable by anyone who gets the file. A password encrypts the PDF so only people who know it can open it. With iWorkPDF, the encryption happens locally — your sensitive document is never sent to a server.
Step-by-step guide
Open your PDF
Drop your PDF into the Security tool and choose "Protect".
Set a strong password
Choose a password that mixes letters, numbers and symbols. This password will be required to open the file.
Download the protected PDF
The encrypted file is generated locally and downloaded instantly. You can also unlock a protected PDF with the same tool if you know the password.
FAQ
Is the encryption real?
Yes. iWorkPDF applies genuine AES-256 encryption to the PDF, entirely in your browser — the password is required to open the file.
What happens if I forget the password?
There is no recovery. Strong encryption cannot be bypassed, so store your password somewhere safe.