pnmtops

pnmtops(1)                  General Commands Manual                 pnmtops(1)

NAME
       pnmtops - convert portable anymap to PostScript

SYNOPSIS
       pnmtops [-scale s] [-dpi n] [-imagewidth n] [-imageheight n] [-width=N]
       [-height=N] [-equalpixels] [-turn|-noturn]  [-rle|-runlength]  [-nocen-
       ter] [-setpage] [-nosetpage] [pnmfile]

       All  options  can  be abbreviated to their shortest unique prefix.  You
       may use two hyphens instead of one.  You may separate  an  option  name
       and its value with white space instead of an equals sign.

DESCRIPTION
       Reads  a  Netpbm  image  as input.  Produces Encapsulated PostScript as
       output.

       If the input file is in color (PPM), pnmtops generates  a  color  Post-
       Script  file.   Some  PostScript  interpreters can't handle color Post-
       Script.  If you have one of these you  will  need  to  run  your  image
       through ppmtopgm first.

       If  you specify no output dimensioning options, the output image is di-
       mensioned as if you had specified -scale=1.0, which means  aproximately
       72  pixels of the input image generate one inch of output (if that fits
       the page).

       Use  -imagewidth,  -imageheight,  -equalpixels,  -width,  -height,  and
       -scale to adjust that.

OPTIONS
       -imagewidth
              -imageheight  Tells  how wide and high you want the image on the
              page, in inches.  The aspect ratio of the image is preserved, so
              if  you specify both of these, the image on the page will be the
              largest image that will fit within the box of those dimensions.

              If these dimensions are greater than  the  page  size,  you  get
              Postscript output that runs off the page.

              You   cannot  use  imagewidth  or  imageheight  with  -scale  or
              -equalpixels.

       -equalpixels
              This option causes the output image to have the same  number  of
              pixels  as  the input image.  So if the output device is 600 dpi
              and your image is 3000 pixels wide, the output image would be  5
              inches wide.

              You  cannot  use -equalpixels with -imagewidth, -imageheight, or
              -scale.

       -scale tells how big you want the image on the page.  The value is  the
              number  of inches of output image that you want 72 pixels of the
              input to generate.

              But pnmtops rounds the number to something that is  an  integral
              number  of  output  device pixels.  E.g. if the output device is
              300 dpi and you specify -scale=1.0, then 75 (not 72)  pixels  of
              input becomes one inch of output (4 output pixels for each input
              pixel).  Note that the -dpi option tell pnmtops how many  pixels
              per inch the output device generates.

              If  the  size so specified does not fit on the page (as measured
              either by the -width and -height options  or  the  default  page
              size of 8.5 inches by 11 inches), pnmtops ignores the -scale op-
              tion, issues a warning, and scales the image to fit on the page.

       -dpi   This option specifies the dots per inch of your  output  device.
              The default is 300 dpi.  In theory PostScript is device-indepen-
              dent and you don't have to worry about this, but in practice its
              raster  rendering  can have unsightly bands if the device pixels
              and the image pixels aren't in sync.

              Also this option is crucial to the working  of  the  equalpixels
              option.

       -width
              -height  These  options  specify  the  dimensions of the page on
              which the output is to be printed.  This can affect the size  of
              the output image.

              The  page size has no effect, however, when you specify the -im-
              agewidth, -imageheight, or -equalpixels options.

              These options may also affect positioning of the  image  on  the
              page and even the paper selected (or cut) by the printer/plotter
              when the output is printed.  See the -nosetpage option.

              The default is 8.5 inches by 11 inches.

       -turn  -noturn These options control whether the image gets  turned  90
              degrees.  Normally, if an image fits the page better when turned
              (e.g. the image is wider than it is tall, but the page is taller
              than it is wide), it gets turned automatically to better fit the
              page.  If you specify the -turn option, pnmtops turns the  image
              no  matter  what its shape; If you specify -noturn, pnmtops does
              not turn it no matter what its shape.

       -rle   -runlength These identical options specify  run-length  compres-
              sion.   This  may save time if the host-to-printer link is slow;
              but normally the printer's processing time  dominates,  so  -rle
              makes things slower.

       -nocenter
              By  default,  pnmtops centers the image on the output page.  You
              can cause pnmtops to instead put the  image  against  the  upper
              left corner of the page with the -nocenter option.  This is use-
              ful for programs which can include PostScript files,  but  can't
              cope  with  pictures  which are not positioned in the upper left
              corner.

              For backward compatibility, pnmtops accepts the option  -center,
              but it has no effect.

       -setpage
              pnmtops  can  generate  a  "setpagedevice" directive to tell the
              printer/plotter what size paper to use (or cut).  The dimensions
              it  specifies  on this directive are those selected or defaulted
              by the width and height options or defaulted.   If  you  want  a
              "setpagedevice" directive in the output, specify -setpage.  This
              can be useful if your printer chokes on  this  directive,  which
              has  not  always been defined in Postscript, or you want to fake
              out the printer and print on one size paper as if you're  print-
              ing on another.

              Before  release 10.0 the default was to generate the "setpagede-
              vice" directive, and there is the switch -nosetpage  to  supress
              it, but that's actually a no-op now.

SEE ALSO
       pnm(5),  gs(1),  psidtopgm(1),  pstopnm(1),  pbmtolps(1), pbmtoepsi(1),
       pbmtopsg3(1), ppmtopgm(1),

AUTHOR
       Copyright (C) 1989, 1991 by Jef Poskanzer.
       Modified  November  1993  by   Wolfgang   Stuerzlinger,   wrzl@gup.uni-
       linz.ac.at

                                  25 May 2001                       pnmtops(1)