psidtopgm(1)              UNIX System V(02 August 89)              psidtopgm(1)


NAME
      psidtopgm - convert PostScript "image" data into a portable graymap

SYNOPSIS
      psidtopgm width height bits/sample [imagedata]

DESCRIPTION
      Reads the "image" data from a PostScript file as input.  Produces a
      portable graymap as output.

      This is a very simple and limited program, and is here only because so
      many people have asked for it.  To use it you have to manually extract
      the readhexstring data portion from your PostScript file, and then give
      the width, height, and bits/sample on the command line.  Before you
      attempt this, you should at least read the description of the "image"
      operator in the PostScript Language Reference Manual.

      It would probably not be too hard to write a script that uses this filter
      to read a specific variety of PostScript image, but the variation is too
      great to make a general-purpose reader.  Unless, of course, you want to
      write a full-fledged PostScript interpreter...

SEE ALSO
      pnmtops(1), pgm(5)

AUTHOR
      Copyright (C) 1989 by Jef Poskanzer.



























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