NAME

       ppmtopj - convert a PPM image to an HP PaintJet file

SYNOPSIS

       ppmtopj

       [-gamma val]

       [-xpos val]

       [-ypos val]

       [-back {dark|lite}]

       [-rle]

       [-center]

       [-render  { none | snap | bw | dither | diffuse | monodither | monodiffuse | clusterdither
       | monoclusterdither }]

       [ppmfile]

DESCRIPTION

       This program is part of Netpbm(1).

       ppmtopj reads a PPM image as input and converts it into a format suitable to be printed by
       an HP PaintJet printer.

       For  best  results, the input file should be in 8-color RGB form; i.e. it should have only
       the 8 binary combinations of full-on and full-off primaries.  You could convert your input
       to this format like this:

           pamseq 3 1 testimg.ppm >8color.pam
           pnmremap -map 8color.pam testimg.pam | ppmtopj

       Or you could use
           ppmdither -red 2 -green 2 -blue 2

OPTIONS

       In addition to the options common to all programs based on libnetpbm (most notably -quiet,
       see
        Common Options ⟨index.html#commonoptions⟩ ), ppmtopj  recognizes  the  following  command
       line options:

       -rle   Run length encode the image.  (This can result in larger images)

       -back  Enhance the foreground by indicating if the background is light or dark compared to
              the foreground.

       -render alg
              Use an internal rendering algorithm (default dither).

       -gamma int
              Gamma correct the image using the integer int as a gamma (default 0).

       -center
              Center the image to an 8.5 by 11 page

       -xpos pos
              Move by pos pixels in the x direction.

       -ypos pos
              Move by pos pixels in the y direction.

SEE ALSO

       HP  PaintJet  XL  Color  Graphics  Printer  User's   Guide,   pnmtopclxl(1),   pjtoppm(1),
       pamdepth(1),  pnmremap(1),  pamseq(1), ppmdither(1), pbmtolj(1), ppmtolj(1), ppmtopjxl(1),
       thinkjettopbm(1), ppm(1)

AUTHOR

       Copyright (C) 1991 by Christos Zoulas.

DOCUMENT SOURCE

       This manual page was generated by the Netpbm tool 'makeman' from HTML source.  The  master
       documentation is at

              http://netpbm.sourceforge.net/doc/ppmtopj.html