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Part: VII Working for the Web with Image... > Optimizing Your Images for the Web a...

Chapter 23. Optimizing Your Images for the Web and Email

In this chapter, you'll learn

  • How the GIF file format differs from the JPEG format

  • How to use GIF optimization options

  • How to optimize JPEG images

  • All about the JPEG 2000 file format

  • Fast facts for using the Portable Network Graphic (PNG) format

If we look at the word optimal and all its sub-variants, we are led to believe that optimizing anything—an image file, a yo-yo, your housecat—makes that thing the very best (of whatever it is). However, optimization is a nebulous term when it comes to Photoshop, ImageReady, and the files these Adobe products handle. Optimization, in the Adobe vernacular, means “making the very best-looking picture, using the fewest pixels, or making the smallest file size.” If this definition seems confusing, just read along in this chapter, and we'll show you how to make the best-looking image to post or email, while making it the smallest (in file size) you possibly can.


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