# phpman > info > pnminvert

[pnminvert(1)](https://www.chedong.com/phpMan.php/man/pnminvert/1/markdown)                General Commands Manual               [pnminvert(1)](https://www.chedong.com/phpMan.php/man/pnminvert/1/markdown)

NAME
       pnminvert - invert a portable anymap

SYNOPSIS
       pnminvert [pnmfile]

DESCRIPTION
       Reads  a portable anymap as input.  Inverts it black for white and pro-
       duces a portable anymap as output.

SEE ALSO
       [pnm(5)](https://www.chedong.com/phpMan.php/man/pnm/5/markdown)

AUTHOR
       Copyright (C) 1989 by Jef Poskanzer.

                                08 August 1989                    [pnminvert(1)](https://www.chedong.com/phpMan.php/man/pnminvert/1/markdown)