I am submitting my son's photos into a contest, but they have to be under 2MB each. They're jpeg files, but they're almost all bigger than 2mb. I use a Mac, and I don't have photoshop. I have recently downloaded Gimp, but haven't used it much. Is there a way to reduce the file size without messing with the pic too much in iPhoto or Gimp? I'm sure there is, I just don't know how. I never had to worry about it before! Thanks in advance!