If you're on a Mac, About Acrobat Reader is not on the Help menu but on the app menu (the first one after the apple, with the name of the app). This should be the same for all apps, so it's easy to find once you know how.
If you're on a Mac, About Acrobat Reader is not on the Help menu but on the app menu (the first one after the apple, with the name of the app). This should be the same for all apps, so it's easy to find once you know how.