Is there a good equivalent to Photoshop for macs. I have a project for school and I am to edit an advertisement to make it more effective. I am to change the fonts, change background colors, etc to make it more appealing. I was wondering if there was a program for macs or a program from ilife that could do this. I didn’t know if these types of features could be done in pages, or iphoto. Or if I could download a trial of Apecture 3 to do this.