ReaCompressor - Version 1.65 ReaCompressor provides you with an ability to choose from the most effective compression formats for you image for the web: JPG, GIF or PNG. Then you can optimize it with your own JPG, GIF, and PNG settings and see changes in a real time. It lets you quickly and easily compare your original image with optimized JPG, GIF or PNG by its visual quality, size, etc. in a double pane view of both input and output image and work on batch of images.