Okay I need some help. So I am trying to edit a screen shot with some text and changing the text itself. I am trying to use Gimp but am getting frustrated. I guess I don't know how to do it... Is there another app I should try? Essentially I am looking for a photoshop free app for macs. I just need to edit some text in a screen shot. So I want to white out the text thats there and put new text in its place. Thanks!