Copyright (c) 1997-1998 Jan Nijtmans, and possibly others.
Copyright (c) 1998 Nick Ing-Simmons. 
All rights reserved. This package believed to be free software; you can
redistribute it and/or modify it under the same terms as Perl itself.

This module contains one a collection of format handlers for Tk
written by Jan Nijtmans, adapted for perl/Tk by Nick Ing-Simmons.

It can be used in combination with Tk800.005 or later. 

The "png" and "zlib" libraries must already be installed.

More info about the PNG format (and sources) can be found via
http://www.wco.com/~png/

Valid format specifiers for reading photo's:
  "png"

Valid format specifiers for writing photo's:
  "png Author <name> Title <title> Description ....."
  	Each pair of arguments will add a named text chunk to the file.


THANKS TO

		Jan Nijtmans
		CMG (Computer Management Group) Arnhem
		email: nijtmans@worldaccess.nl (private)
		       Jan.Nijtmans@cmg.nl (work)
		url:   http://www.worldaccess.nl/~nijtmans/