SYNOPSIS

This module is used by Image::ExifTool

DESCRIPTION

This module contains routines required by Image::ExifTool to read and write PNG (Portable Network Graphics), MNG (Multi-image Network Graphics) and JNG (JPEG Network Graphics) images.

AUTHOR

Copyright 2003-2016, Phil Harvey (phil at owl.phy.queensu.ca)

This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself.

REFERENCES

<http://www.libpng.org/pub/png/spec/1.2/>

<http://www.faqs.org/docs/png/>

<http://www.libpng.org/pub/mng/>

<http://www.libpng.org/pub/png/spec/register/>