# phpman > perldoc > Image::ExifTool::APP12

## NAME
    [Image::ExifTool::APP12](https://www.chedong.com/phpMan.php/perldoc/Image%3A%3AExifTool%3A%3AAPP12/markdown) - Read APP12 meta information

## SYNOPSIS
    This module is loaded automatically by [Image::ExifTool](https://www.chedong.com/phpMan.php/perldoc/Image%3A%3AExifTool/markdown) when required.

## DESCRIPTION
    This module contains definitions required by [Image::ExifTool](https://www.chedong.com/phpMan.php/perldoc/Image%3A%3AExifTool/markdown) to interpret APP12 meta
    information.

## 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.

## ACKNOWLEDGEMENTS
    Thanks to Heinrich Giesen for his help decoding APP12 "Ducky" information.

## SEE ALSO
    "APP12 Tags" in [Image::ExifTool::TagNames](https://www.chedong.com/phpMan.php/perldoc/Image%3A%3AExifTool%3A%3ATagNames/markdown), Image::[ExifTool(3pm)](https://www.chedong.com/phpMan.php/man/ExifTool/3pm/markdown)