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Drupal 7 by David Mercer

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Images

As broadband and high speed Internet gets faster and more prevalent, the fundamental structure of web pages must also change to capitalize on these improvements. Conventional wisdom used to state that a web page should be no more than 20 KB in total size in order for it to be downloaded at a reasonable rate. Now, it's not uncommon for a single background image (one of possibly many) to be larger than that, let alone any other content and the ever-present advertising.

However, this does not mean that we can be wasteful when dealing with images. You should still apply stringent optimization to any images that are to be displayed through your site. Often, with little discernable loss of quality, an image can have its color count reduced ...

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