pnminvert (1) Linux Manual Page
NAME
pnminvert – invert a portable anymap
SYNOPSIS
pnminvert [pnmfile]
DESCRIPTION
Reads a portable anymap as input. Inverts it black for white and produces a portable anymap as output.
SEE ALSO
pnm(5)
AUTHOR
Copyright (C) 1989 by Jef Poskanzer.