Ppmtopj User Manual
Section: Misc. Reference Manual Pages (0)
Updated: 13 July 1991
ppmtopj - convert a PPM image to an HP PaintJet file
This program is part of
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
In addition to the options common to all programs based on libnetpbm
(most notably -quiet, see
), ppmtopj recognizes the following
command line options:
Run length encode the image.
(This can result in larger images)
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 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.
HP PaintJet XL Color Graphics Printer User's Guide,
Copyright (C) 1991 by Christos Zoulas.
This manual page was generated by the Netpbm tool 'makeman' from HTML
source. The master documentation is at