Some of the popular Gif Fotoscanner video formats are flv, avi, mov, mp4, mpg, mpeg, wmv, 3gp, asf, swf, ogg, h, Gif Fotoscanner. Useful when you need to reduce GIF size or fit the image in specific dimensions. If your. For best chances, make sure the width and height of your gif are both larger than px, since Facebook tends to not animate small gifs. Height pixels. Size x. Gifsicle is usually the fastest tool and produces smaller files, but is designed for speed, not quality. Online image resizer Ezgif's online image resizer will resize, crop, or flip animated gifs and other images, with the same quality and speed as professional software, without the need to buy and install anything.