NAME

       Image::ExifTool::PNG - Read and write PNG meta information

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 2003-2018, 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/>

SEE ALSO

       "PNG Tags" in Image::ExifTool::TagNames, "MNG Tags" in Image::ExifTool::TagNames,
       Image::ExifTool(3pm)