GIF Construction Set Professional - Version 2.0a GIF Construction Set Professional is the powerful GIF editor to create, edit and optimize GIF animations, single GIF images and transparent GIF files. It features Animation Wizard, the best block management tools available, Supercompressor to optimize them, Protection Matrix, AVI conversion, an intuitive user interface and lots more. Extensive documentation and tutorials assist even novice users to get right down to things that flash and move.