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Chapter 1. Finding Inspiration > Using the GIF image file format

Using the GIF image file format

An image saved as a GIF (Graphics Interchange Format) file comprises 256 (8‐bit) colors. Images saved with the GIF format can be viewed on all current Web browsers. The GIF (pronounced giff or jiff) image format is commonly used for images with large areas of solid color, such as logos, or graphic symbols such as buttons. The banner image for the Web page in Figure 1-9 is a GIF image.

Figure 1-9: A GIF image at work as a banner.


The resulting file size of the image depends on how you optimize the image. When you optimize a GIF image, you specify the number of colors with which the image is saved and the color reduction algorithm. The goal is to optimize the image so that it still looks good and loads quickly. Find out more about image optimization in Chapter 4 of this minibook.


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