Acrobat flouts well-established software conventions. I'm not going to list all of the ones I've run across here. Frankly, I don't have time. For instance, Acrobat serves up an alert. For most programs, a user can quickly dismiss the alert box by hitting the escape key. Not here. Want to find the version of the software? Look under Help --> About. Not here. It's stunning how much Acrobat slows things down.