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Chapter 13. Creating Graphics on the Fly > File Formats
13.1. File Formats
Let's first review the image formats that are used online today. The most common image formats, of course, are GIF and JPEG, which every graphical web browser supports. Other file formats that we will discuss in this chapter include PNG and PDF.
13.1.1. GIF
The Graphics Interchange Format (GIF ) was created by CompuServe and released as an open standard in 1987. It quickly became a very popular image format and, along with JPEG, became a standard format for images on the Web. GIF files are typically quite small, especially for images with few colors, which makes them well suited for transferring online.
