Now now. Don't put the man down too soon.
You have several laborious options! Like pointlessly virtualising windows or learning how to use Linux tools such as GIMP. Which is, kinda like trying to learn to ride a new type of bike, but on this one you ride it backwards! And it doesn't quite have wheels, you have to find the right one to install yourself.
But to be honest, I'd stick with deano's answer.