NAME
    pnmflip - perform one or more flip operations on a portable anymap

SYNOPSIS
    pnmflip   [-leftright|-lr]  [-topbottom|-tb]   [-transpose|-xy]
    [-rotate90|-r90|-ccw ] [-rotate270|-r270|-cw ] [-rotate180|-r180] [pnm-
    file]

DESCRIPTION
    Reads a  portable anymap as input. Performs one or more flip opera-
    tions, in the order specified, and writes out a portable anymap.

OPTIONS
    The flip operations available are: left for right (-leftright or  -lr);
    top for  bottom  (-topbottom or -tb); and transposition (-transpose or
    -xy). In addition, some canned concatenations are available: -rotate90
    or -ccw  is equivalent to -transpose -topbottom; -rotate270 or -cw is
    equivalent to -transpose -leftright; and -rotate180 is equivalent to
    -leftright -topbottom.

    All flags can be abbreviated to their shortest unique prefix.

SEE ALSO
   pnmrotate(1), pnm(5)

AUTHOR
    Copyright (C) 1989 by Jef Poskanzer.