Adding a password to open the documentĮnable the Requires a password to open the document option in the Password Security window. So, for instance you may create a password that allows viewing and commenting the PDF document, but does not allow printing or editing. A permission password allows only the selected actions and prohibits all others. The second type is a permission password. If you just want to share the document with another person and don’t want others to be able to open it, you most likely need a password to open. The first one is a password to open the document. PDF documents can be encrypted with two types of passwords. A new window will pop up, Password Security. Click the dropdown box and select Password encryption there. Switch to the Security tab.īy default, a PDF document uses no encryption. This will bring up the Document Properties window. To protect a PDF document with a password, open the PDF document you want to protect, then click the File > Properties menu. Without the password, a user cannot open the document or is not allowed to edit, print or comment the document. Password protection allows you to prevent unauthorized persons from performing certain actions with the document.
