I wish to heat transfer a picture onto a previously dyed shirt. I am looking for an editing program which will reverse the image so I can iron it onto the shirt. Any suggestions for a program? I downloaded Gimp and managed to avoid all of the unpleasant added items but the program does not reverse the image as far as I can tell. The iron on paper is about twelve for six sheets and I really do not want to spend a lot on just one or two shirts.