gd: gd (a graphics library) gd: gd: gd is a graphics library. It allows your code to quickly draw images gd: complete with lines, arcs, text, multiple colors, cut and paste from gd: other images, and flood fills, and write out the result as a PNG or gd: JPEG file. This is particularly useful in web applications, where gd: PNG and JPEG are two of the formats accepted for inline images by gd: most browsers. gd: gd: The gd library was written by Thomas Boutell. gd: