README for Barcode::Code128 - Generate CODE 128 bar codes

DESCRIPTION:
   Barcode::Code128 generates bar codes using the CODE 128 symbology.
   The typical use this is for generating a PNG file with the `png()'
   method which uses the GD package by Lincoln Stein.  When this PNG
   file is printed, it can be scanned by most modern hand-held bar
   code readers.  The application which drove the invention of this
   module places the PNG file on a web page which the user must print
   out and submit along with supporting documents.  The bar code
   helps the receiving agency record when it has been received.

   NOTE: Earlier versions of this module generated GIF files instead
   of PNG files.  This has been changed due to a change in the GD
   module.  The reason for this is the patent dispute over the form
   of compression used in GIF files.  Version 1.20 or newer of GD.pm
   is required to work with this.  If you have earlier versions of
   GD.pm then you must install version 1.01 of Barcode::Code128 to
   match.

   Since the GD module is required you will need to install it before
   installing this module.  You can obtain it from the CPAN
   (Comprehensive Perl Archive Network) repository of your choice
   under the directory `authors/id/LDS'.  Visit http://www.perl.com/
   for more information about CPAN.  The GD home page is:
   http://stein.cshl.org/WWW/software/GD/GD.html

EXAMPLE:
   use Barcode::Code128;
   $object = new Barcode::Code128;
   print "Content-Type: image/png\n\n";
   $object->png('CODE 128');

AUTHOR: William R. Ward, [email protected]

TERMS: This module is placed into the public domain.  You are free to
   use, modify, or redistribute this module in any way for commercial
   or other uses.  My only request is that if you change it, please
   submit copies of your changed code (or diffs) so that I can
   incorporate them into the version on CPAN.  Also, in order to
   reduce the likelihood of confusion please do not distribute a
   modified version of this module unless you change the name first.

HISTORY:
   Version 1.10, 10/26/1999 - Generate PNG instead of GIF files

   Version 1.01, 7/19/1999 - Bug fix to deal with inputs ending in zero

   Version 1.00, 3/8/1999 - Initial version.

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