Note that use of Adobe Acrobat software allows documents to be printed or viewed without having access to the original creating software. More and more documents are appearing in Adobe Acrobat format on the Internet as it had solved many of the early problems associated with mixed text and graphics. However, HTML format remains the first choice due to normally smaller file size. Your submission should be either a GIF or a JPEG and limited to 256 colors. The higher the number of colors, the larger the file size for downloading.
Graphics are large by nature.
Large files must be downloaded to be viewed and significantly increase download time. Judicious use of image files enhance the attractiveness of the page and decreases download time. It is also recommended you don't save the file using any internal type of compression. This might sound contradictory, but not everyone will have a viewer that supports the various compression types. Multimedia includes computer files developed from sound clips, movie clips, slide presentations and quicktimes, for example.