This code implements a series of handy PNG tools. These are:

 - pnginfo: which displays interesting information about a PNG file
     (it is modelled on tiffinfo)
 - pngchunkdesc: which decodes the "hidden" information in a PNG chunk name
 

See the file INSTALL for installation details.

This code is (c) Michael Still, and is covered by the GNU GPL version 2, which is included in the file named COPYING. The sample image is (c) Michael Still 2002.