The use of graphics in a web page can be an extremely valuable technique for communicating information or complex concepts. At the same time, there is always a risk of over using graphics and impeding the performance level of your page with large graphic files. There are some general guidelines to follow when considering the use of images. Also be sure that the on-screen size of a graphic does not adversely affect the layout quality of your page.
File size is also a significant consideration.
This issue relates directly to the use of your site since many users will not wait more that 5 - 10 seconds for a page to appear before moving to another site. The more graphics your site has, the longer it will take to load. For these reasons you should keep the amount of graphic images on your site to a minimum. Only include photographic images when necessary, since they tend to be very large files in order to accommodate the number of colors needed. A new window will open which displays the files available in your web.