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Chapter 10. Preparing Images for the Web > Understanding Image Requirements for...

Understanding Image Requirements for the Web

Preparing images for publication on the Web or for distribution via e-mail presents its own unique set of challenges. Because the vast majority of Internet users still depend on dial-up connections (as opposed to highspeed DSL or cable connections), an image’s file size is of primary concern. Your image needs to be small enough to download quickly, while retaining enough information to display the colors and details of your original image.

Photoshop Elements helps you accomplish this digital sleight-of-hand through a process called optimization. Optimization pares down and streamlines an image’s display information based on variables that you select and control. By limiting the number of colors in an image or by selectively discarding pixels that are less critical than others, Photoshop Elements simplifies an image and reduces its file size. Once an image has been simplified in this way, it is said to be optimized (Figure 10.1).


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