PPMTOPS
NAME
ppmtops - convert a portable pixmap into color Encapsulated PostScript
SYNOPSIS
ppmtops [-scale <x>] [<ppmfile>]
DESCRIPTION
Reads a portable pixmap as input. Produces Encapsulated PostScript as
output, using the colorimage operator. This operator is only defined
on color printers and very recent B&W printers. Most of the time you
will NOT want to use ppmtops; instead, do a ppmtopgm | pgmtops.
The -scale flag controls the scale of the result. The default scale
is 1, which results in one ppm pixel producing a 3x3 square of
PostScript pixels. On a 300 dpi printer such as the Apple
LaserWriter, this makes the output look about the same size as the
input would if it was displayed on a typical 72 dpi screen. To get
one ppm pixel per LaserWriter pixel, use "-s 0.333333".
All flags can be abbreviated to their shortest unique prefix.
Note that there is no pstoppm tool - this transformation is one-way,
because a pstoppm tool would be a full-fledged PostScript interpreter,
which is beyond the scope of this package.
SEE ALSO
ppm(5), pgmtops(1), psidtopgm(1)
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.