How do get your sig animated? What program i use paint.net and photoshop, does gimp let you do it?
Well, i mostly use GIMP. It's basically a free version of Photoshop.
I guess GIMP is the best Photoshop alternative, but I've never used it.
For Image editing in general, I use a mixture of programs: Photoshop, Lightroom, and sometimes After Effects(sometimes faster for editing certain things).