PPMSCALE

NAME

      ppmscale - scale a portable pixmap

SYNOPSIS

      ppmscale <s> [ppmfile]
      ppmscale -xsize|-width|-ysize|-height <s> [ppmfile]
      ppmscale -xscale|-yscale <s> [ppmfile]
      ppmscale -xscale|-xsize|-width <s> -yscale|-ysize|-height <s> [ppmfile]

DESCRIPTION

      Reads a portable pixmap as input.  Scales it by the specified factor
      or factors and produces a portable pixmap as output.  You can both
      enlarge (scale factor > 1) and reduce (scale factor < 1).  You can
      specify one dimension as a pixel size, and the other dimension will be
      scaled correspondingly.  You can specify one dimension as a scale, and
      the other dimension will not be scaled.  Or, you can specify different
      scales for each axis, either as scale factors or as pixel sizes.
      All flags can be abbreviated to their shortest unique prefix.

SEE ALSO

      pbmreduce(1), pnmenlarge(1), ppm(5)

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.