Section: User Commands (1)
Updated: 13 July 1991Index
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ppmtopj - convert a portable pixmap to an HP PaintJet file
Reads a portable pixmap 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 get this by sending the input file through
with a map file such as:
0 0 0 255 0 0 0 255 0 0 0 255
255 255 0 255 0 255 0 255 255 255 255 255
Or else you could use use
ppmdither -red 2 -green 2 -blue 2.
Run length encode the image.
(This can result in larger images)
Enhance the foreground by indicating if the background is light or
dark compated to the foreground.
- -render alg
Use an internal rendering algorithm (default dither).
- -gamma int
Gamma correct the image using the integet parameter 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
Most of the options have not been tested because of the price of the paper.
Copyright (C) 1991 by Christos Zoulas.
- SEE ALSO