How do I password protect a PDF document on a MacBook Air?

[denorap7984019]

I am trying to password my PDF documents on a macbook. I don't understand why the help options are not assisting me. Can someone help me please?

[pwillener]

In Acrobat, open Document Properties, then select the Security tab.

[Test Screen Name]

If that doesn't work it may be that you don't have Acrobat. This is not the free Adobe Reader but something fancier.