Animated PNG: Loop of all images that's lossless (highest quality), but results in bigger file size and they aren't supported by all software programs (Powerpoint and Twitter are notable for their lack of support for animated PNGs).clicking the 'Hide' button will show you the final size of your downloaded images) This size includes the space behind the controls on the left (i.e.The size of the downloaded images is determined by your browser window, so changing it's size will change the image size.These tips might be helpful in making your choices: Please choose below the options you'd like for your downloaded loop.