I inherited an animated GIF that I need to edit but I can't find software to do it. I've tried a few shareware apps like GIFfun but they don't seem to edit existing animated GIFs, they just create new ones. Or am I missing something? I don't have Photoshop. I have Seashore, a freeware image editor. Any recommendations for a freeware or trial app that I can use to edit one of the frames in an animated gif? Thanks.