\
.\" This man page was generated by the Netpbm tool 'makeman' from HTML source.
.\" Do not hand-hack it!  If you have bug fixes or improvements, please find
.\" the corresponding HTML page on the Netpbm website, generate a patch
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.TH "Ppmtopj User Manual" 0 "13 July 1991" "netpbm documentation"

.UN lbAB
.SH NAME

ppmtopj - convert a PPM image to an HP PaintJet file

.UN lbAC
.SH SYNOPSIS

\fBppmtopj\fP

[\fB-gamma\fP \fIval\fP]

[\fB-xpos\fP \fIval\fP]

[\fB-ypos\fP \fIval\fP]

[\fB-back\fP {\fBdark\fP|\fBlite\fP}]

[\fB-rle\fP]

[\fB-center\fP]

[\fB-render\fP {
\fBnone\fP |
\fBsnap\fP |
\fBbw\fP |
\fBdither\fP |
\fBdiffuse\fP |
\fBmonodither\fP |
\fBmonodiffuse\fP |
\fBclusterdither\fP |
\fBmonoclusterdither\fP
}]

[\fIppmfile\fP]

.UN lbAD
.SH DESCRIPTION
.PP
This program is part of
.BR Netpbm (1)
.
.PP
\fBppmtopj\fP reads a PPM image as input and converts it into a
format suitable to be printed by an HP PaintJet printer.
.PP
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:

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

Or you could use 
.nf
    ppmdither -red 2 -green 2 -blue 2
.fi

.UN lbAE
.SH OPTIONS



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

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

.TP
\fB-render\fP \fIalg\fP
Use an internal rendering algorithm (default dither).

.TP
\fB-gamma\fP \fIint\fP
Gamma correct the image using the integer \fIint\fP as a gamma (default 0).

.TP
\fB-center\fP
Center the image to an 8.5 by 11 page

.TP
\fB-xpos\fP \fIpos\fP
Move by \fIpos\fP pixels in the x direction.

.TP
\fB-ypos\fP \fIpos\fP
Move by \fIpos\fP pixels in the y direction.



.UN lbAG
.SH SEE ALSO

HP PaintJet XL Color Graphics Printer User's Guide,
.BR \fBpnmtopclxl.html\fP (1)
,
.BR \fBpjtoppm.html\fP (1)
,
.BR \fBpamdepth\fP (1)
,
.BR \fBpnmremap\fP (1)
,
.BR \fBpamseq\fP (1)
,
.BR \fBppmdither\fP (1)
,
.BR \fBpbmtolj.html\fP (1)
,
.BR \fBppmtolj\fP (1)
,
.BR \fBthinkjettopbm\fP (1)
,
.BR \fBppm\fP (5)


.UN lbAI
.SH AUTHOR

Copyright (C) 1991 by Christos Zoulas.