PDF tool

Protect PDF with a password

Lock mark sheets, ID copies and reports so only people with the password can open them.

1. Choose a PDF

Drop a PDF here or click to choose One PDF file

🔒 Your file and password stay on your device.

2. Set a password

Password to open the PDF

Type it againUse English letters, numbers and symbols, up to 32 characters. There is no way to recover a lost password.

People who open it can Print Copy text Edit, fill forms and add comments

Choose a PDF to begin.

How to password-protect a PDF

Choose your PDF.
Type a password twice and choose what people may do after opening it.
Press Protect PDF. Open the new file once to check the password works before you delete the original.

How strong is the protection?

The file is encrypted with 128-bit AES, which every common PDF reader supports. A long password with letters and numbers is much harder to guess than a date of birth.

Do print and copy limits always work?

Most readers respect them, but some apps ignore them. Only the open password truly keeps people out.