.TH pnminvert 1 "08 August 1989"
.SH NAME
pnminvert - invert a portable anymap
.SH SYNOPSIS
pnminvert [pnmfile]
.SH DESCRIPTION
Reads a portable anymap as input.
Inverts it black for white and produces a portable anymap as output.
.SH "SEE ALSO"
pnm(5)
.SH AUTHOR
Copyright (C) 1989 by Jef Poskanzer.

Permission to use, copy, modify, and distribute this software and its
documentation for any purpose and without fee is hereby granted, provided
that the above copyright notice appear in all copies and that both that
copyright notice and this permission notice appear in supporting
documentation.  This software is provided "as is" without express or
implied warranty.