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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) and
Netscape Navigator (4.04 and later browsers). So unless you are
designing for a specific target audience using a browser that
supports the PNG format, use GIFs or JPEGs for broader appeal.
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 file increases, so does the file size and the
file download time. You can often strike a good balance between
the quality of the image and the file size by compressing a JPEG
file. |
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