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Dithering GIF Images
Dithering in GIF images helps reduce banding in gradients of color, but it also vastly increases the file size. This gallery demonstrates how large the images can get with dithering and no dithering.

How do I reduce the size of photos for online use?
Photos from digital cameras are always too big for Web pages - so resizing them is critical to have a Web page that downloads quickly.

How to Make Smaller GIFs
GIF files are found on most Web pages, and when you make them as small as possible, your Web pages will improve. This how to makes it easy.

Optimize JPEG Images
Learn how to take a JPEG file taken from your digital camera and make it small enough to load quickly on a Web page. After optimizing the JPEG went from 1.7MB to 12KB.

Optimizing GIF Images
Comparing the file sizes for vertical lines in a GIF file to horizontal lines in a GIF file.

Optimizing Images
There are some simple techniques to optimizing images for the Web. Learn how from your Web Design/HTML Guide, Jennifer Kyrnin.

The Pitfalls of JPEG Compression
Make sure, when you're saving your files from your digital camera that you're not using so much JPEG compression that your photos are damaged.