# psidtopgm(1) - man - phpMan

[psidtopgm(1)](https://www.chedong.com/phpMan.php/man/psidtopgm/1/markdown)                           General Commands Manual                          [psidtopgm(1)](https://www.chedong.com/phpMan.php/man/psidtopgm/1/markdown)



## 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 out‐
       put.

       This program is obsoleted by **pstopnm**.  What follows was written before **pstopnm** existed.

       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.   Be‐
       fore  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)](https://www.chedong.com/phpMan.php/man/pnmtops/1/markdown), [pgm(5)](https://www.chedong.com/phpMan.php/man/pgm/5/markdown)

## AUTHOR
       Copyright (C) 1989 by Jef Poskanzer.



                                            02 August 89                                [psidtopgm(1)](https://www.chedong.com/phpMan.php/man/psidtopgm/1/markdown)