# phpman > perldoc > Image::ExifTool::GeoTiff

## NAME
    [Image::ExifTool::GeoTiff](https://www.chedong.com/phpMan.php/perldoc/Image%3A%3AExifTool%3A%3AGeoTiff/markdown) - Read GeoTiff 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 GeoTiff meta
    information. GeoTiff information is used in images to specify exact geometric mappings used to
    transform the image to real world coordinates.

## 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
    ftp://ftp.remotesensing.org/geotiff/libgeotiff/libgeotiff-1.1.4.tar.gz
    <http://www.charttiff.com/whitepapers.shtml>

## SEE ALSO
    "GeoTiff 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)