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ppmtopj - Man Page

convert a PPM image to an HP PaintJet file

Examples (TL;DR)



[-gamma val]

[-xpos val]

[-ypos val]

[-back {dark|lite}]



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



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


In addition to the options common to all programs based on libnetpbm (most notably -quiet, see Common Options ), 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.

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)


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


Referenced By

pbmtolj(1), pjtoppm(1), pnmtopclxl(1), ppmtolj(1), ppmtopjxl(1), thinkjettopbm(1).

13 July 1991 netpbm documentation