Protect a PDF File with a Password
Does your file contain sensitive information? Add a strong password with 256-bit encryption — nobody will be able to open the file without it.
How does it work?
- Upload your PDF
Select the file you want to protect. - Enter a password
Choose a strong password of at least 4 characters — mixing letters and numbers is best. - Download the protected file
Get an encrypted copy of your file that asks for the password when opened.
FAQs about Protect a PDF File with a Password
How strong is the encryption?
We use AES 256-bit encryption, the same standard used to protect sensitive data.
What if I forget the password?
It cannot be recovered — make sure to store your password somewhere safe before protecting the file.
Can the protection be removed later?
Yes, use the "Unlock PDF" tool with the correct password.