PPMTOPJXL(1)PPMTOPJXL(1)NAMEppmtopjxl - convert a portable pixmap into an HP PaintJet XL PCL file
SYNOPSISppmtopjxl [-nopack] [-gamma <n> ] [-presentation] [-dark] [-diffuse]
[-cluster] [-dither] [-xshift <s> ] [-yshift <s> ] [-xshift <s> ]
[-yshift <s> ] [-xsize|-width|-xscale <s> ] [-ysize|-height|-yscale <s>
Reads a portable pixmap as input. Produces a PCL file suitable for
printing on an HP PaintJet XL printer as output.
The generated file is not suitable for printing on a normal PrintJet
printer. The -nopack option generates a file which does not use the
normal TIFF 4.0 compression method. This file might be printable on a
normal PaintJet printer (not an XL).
The -gamma option sets the gamma correction for the image. The useful
range for the PaintJet XL is approximately 0.6 to 1.5.
The rendering algorithm used for images can be altered with the
-dither, -cluster, and -diffuse options. These options select ordered
dithering, clustered ordered dithering, or error diffusion respec‐
tively. The -dark option can be used to enhance images with a dark
background when they are reduced in size. The -presentation option
turns on presentation mode, in which two passes are made over the paper
to increase ink density. This should be used only for images where
quality is critical.
The image can be resized by setting the -xsize and -ysize options. The
parameter to either of these options is interpreted as the number of
dots to set the width or height to, but an optional dimension of `pt'
(points), `dp' (decipoints), `in' (inches), or `cm' (centimetres) may
be appended. If only one dimension is specified, the other will be
The options -width and -height are synonyms of -xsize and -ysize.
The -xscale and -yscale options can alternatively be used to scale the
image by a simple factor.
The image can be shifted on the page by using the -xshift and -yshift
options. These move the image the specified dimensions right and down.
14 March 1991 PPMTOPJXL(1)