-gd library creates PNG, JPEG and WBMP images, not GIF images. This is
-a good thing. PNG is a more compact format, and full compression is
-available. JPEG works well with photographic images, and is still more
-compatible with the major Web browsers than even PNG is. WBMP is
-intended for wireless devices (not regular web browsers). Existing
-code will need modification to call or gdImageJpeg instead of
-gdImageGif.
-
-This library allows you to easily create and manipulate PNG, JPEG
-image files from your C programs.
+gd is the image manipulating library. It was created to allow graphs,
+charts and the like to be generated on the fly for use on the World
+wide Web, but is useful for any application in which custom images are
+useful. It is not a paint program; it is a library. gd library creates
+PNG, JPEG, GIF and WBMP images. PNG is a more compact format, and full
+compression is available. JPEG works well with photographic images,
+and is still more compatible with the major Web browsers than even PNG
+is. WBMP is intended for wireless devices (not regular web browsers).