Image Files and the Web
Image File Formats
There are literally hundreds of different formats for storing images as
digital files. However, for the Web, there are really only two (soon 3)
formats you should use. These are:
Only allows images with 256 colors, but stores the image in
a compressed format, to keep them small.
- Good for -- icons, logos and clipart-like graphics.
- Bad for -- photographs or other
images that do not have large blocks of solid colors. Use
Allows images with millions of colors. Stores the image
in a compressed format that works best for photograph-like
images (irregular textures and colors). Works poorly on
images with lots of solid color regions.
- Good for -- photographs or other
images that do not have large blocks of solid colors.
- Bad for -- icons, logos and clipart-like graphics.
Use GIF instead.
Designed as a replacement for GIF -- it has many additional
features, and even produces smaller image files. This format
is not yet widely supported.