Mostly GIF or JPEG. PNG is also a good option (larger file size and no animation supported). Why? Widely supported by browsers. Image sizes are not large (good for data transfer through the Internet). GIF (<256 colors) when not many colors in the picture. JPG/JPEG logically is the best when too many colors in the image (to support wide variety of browsers). However, resizing/reducing size/editing and re-saving may degrade the quality of the image. Best approach, work in a raw file format such as BMP, save the file in JPG when it’s the final image that you will use in the web-site.
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From: http://sitestree.com/?p=5285
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Post Data:2010-05-02 22:44:07
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