All: sorry for my late response, but I did not used the computer lately.
@BetterRed: Indeed, but that feature did not worked for pictures, only fonts are affected.
@Kovid: I understand. However, also normal "books" sometimes contains pictures or maps and such. So a limited zoom function could be quite handy.
@dwanthny: That might indeed help. However, the default Windos 7 previewer works also fine for me. I extract all pictures and use the previewer to zoom to my liking.
