Many different types of graphic file formats exist, but three graphic
file formats are generally used in web pages—GIF, JPEG, and
PNG. Currently, GIF and JPEG file formats are the best supported and
can be viewed by most browsers.
PNG files are best suited for almost any type of web graphic due
to their flexibility and small file size; however, the display of
PNG images is only partially supported in Microsoft Internet Explorer
(4.0 and later browsers)
GIF (Graphic Interchange Format) files use a maximum of 256 colors,
and are best for displaying noncontinuous-tone images or those with
large areas of flat colors, such as navigation bars, buttons, icons,
logos, or other images with uniform colors and tones.
JPEG (Joint Photographic Experts Group) file format is the superior
format for photographic or continuous-tone images, because JPEG
files can contain millions of colors. As the quality of a JPEG |