Why do you need to optimize a JPG file and what does optimizing a JPG file actually means. Optimizing a JPG file means reducing its size with minimum quality compromise. When you’re trying to reduce a JPG file you must have observed that it no longer looks as good as it used look originally. Strange shades and boxes begin to appear in a scattered fashion. Different image manipulation tools let you reduce the size of your images while trying maintain as much quality as possible.
But why optimize your images? Two reasons. Some of your visitors may have slower internet connections so they’ll appreciate if they don’t have to wait forever before they can make out what’s the image all about. And lighter images save you lots of bandwidth cost. It hardly makes a difference if your image is viewed by 500-600 odd visitors per day. But what if your web page contains 5-10 images and that page is visited by thousands of visitors daily? You can do the math and figure out how much you are going to pay to your web host just to display the images.
This Smashingmagazine blog post tells you how to optimize your JPG images.
