GIF - Graphical Interchange Format File is a common image format for viewing pictures, etc. When you are using GIF format, you should be aware of the indexed colors, as well as the color palette which you can bring out. The quality of the image is a lot different with this type of format. You can also use text with your images and web graphics through GIF format. The best type of format for viewing pictures happens to be JPEG because they are not limited to the number of displaying colors. If you do not want the transparency of your picture to be faded, then you should use opaque images. You can also just make sure that you use a transparent pixel. This will let them mix in well with backgrounds of different colors. GIF images are also found through the web, and you will be able to save them directly to your computer.