# phpman > perldoc > Image::ExifTool::PPM

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

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

## DESCRIPTION
    This module contains definitions required by [Image::ExifTool](https://www.chedong.com/phpMan.php/perldoc/Image%3A%3AExifTool/markdown) to read and write PPM (Portable
    Pixel Map), PGM (Portable Gray Map) and PBM (Portable BitMap) 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://netpbm.sourceforge.net/doc/ppm.html>>
    <<http://netpbm.sourceforge.net/doc/pgm.html>>
    <<http://netpbm.sourceforge.net/doc/pbm.html>>

## SEE ALSO
    "PPM 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)