Description from the author:
"Here are five REXX programs designed to fetch information from graphics files (BMP, GIF, PNG, JPEG, PCX). I initially wrote them as a part of a program that documents the FILES.BBS files of my BBS system (LoraBBS).
The procedures in these files could be packed together in a single procedure that displays information about files in any of the five formats.
The procedures do not rely on the extension to check whether the file is in the proper format, but to the actual data from the file."