Thanks for teaching this to me Sean (works only on Macs AFAIK)
1. Change image file extension to .bmp
2. Left click and open image with TextEdit
3. Cut/paste the gibberish and do whatever you want to mess it up.
Cool? I think so.
My Obsession of the Night: Databending & Glitch Art
KEVIN JAMES WONG 
that’s actually pretty cool