ppmtopjxl



Ppmtopjxl User Manual(0)                              Ppmtopjxl User Manual(0)




NAME

       ppmtopjxl - convert a PPM image to an HP PaintJet XL PCL file



SYNOPSIS

       ppmtopjxl  [-nopack]  [-gamma  n]  [-presentation]  [-dark]  [-diffuse]
       [-cluster] [-dither] [-xshift s] [-yshift s] [-xshift  s]  [-yshift  s]
       [{-xsize|-width|-xscale} s] [{-ysize|-height|-yscale} s] [ppmfile]



DESCRIPTION

       This program is part of Netpbm(1).

       ppmtopjxl  reads  a PPM image as input and 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.

       You an alter the rendering algorithm used for images with the  -dither,
       -cluster,  and  -diffuse options.  These options select ordered dither-
       ing, clustered ordered dithering, or error diffusion respectively.  You
       can  use the -dark option to enhance images with a dark background when
       they are reduced in size.  The -presentation option turns on  presenta-
       tion  mode, in which two passes are made over the paper to increase ink
       density.  You should use this only for images where quality  is  criti-
       cal.

       You can resize the image 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 you may append an optional
       dimension of ‘pt’ (points), ‘dp’ (decipoints), ‘in’ (inches),  or  ‘cm’
       (centimetres).  If you specify only one dimension, ppmtopjxl will scale
       the other one appropriately.

       The options -width and -height are synonyms of -xsize and -ysize.

       You can alternatively use the -xscale and -yscale options to scale  the
       image by a simple factor.

       You  can  shift  the  image  on  the  page with the -xshift and -yshift
       options.  These move the image the specified dimensions right and down.



SEE ALSO

       ppm(1)



AUTHOR

       Angus Duggan



netpbm documentation             14 March 1991        Ppmtopjxl User Manual(0)

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