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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.
PNG (Portable Network Group) file format is a patent-free replacement
for GIFs that includes support for indexed-color, grayscale,
and true-color images, and alpha channel support for transparency.
PNG is the native file format of Macromedia Fireworks MX. PNG
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1/3/2003
It brings an integrated view of your organization's
diverse sources of knowledge to your desktop, |
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