# Image::ExifTool::PNG - phpMan

## 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 2003-2022, Phil Harvey (philharvey66 at gmail.com)

    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)]