There are a few image file formats that allow you to create basic frame-by-frame animations. One of the best known is the GIF89a format (see below). Here is a list of common image file formats:
- BMP bitmaps: large files not easy to compress;
- GIF: small file size of 256 Kb; ideal for web buttons and banners;
- GIF89a: small file size, but allows for transparency of certain colours and animated images;
- JPEG: higher quality good compression, ideal for pictures;
- TIF: large file size, high quality;
- PNG: like gif, but slightly better yet still not fully supported by Internet Explorer.