Pgmtopgm User Manual(0)				       Pgmtopgm User Manual(0)



NAME
       pgmtopgm - copy PGM image


SYNOPSIS
       pgmtopgm


DESCRIPTION
       This program is part of Netpbm(1).

       pgmtopgm simply copies a PGM image from Standard Input to Standard Out-
       put.  This may seem an unnecessary duplication  of  cat,	 but  remember
       that a PGM program can read a PBM image as if it were PGM.  So pgmtopgm
       can read either a PBM or PGM image and produce a PGM image as output.

       Even that is of limited usefulness because of the fact that almost  any
       program to which you would feed the resulting PGM image could also just
       take the original image directly.  However, sometimes you really need a
       true PGM image.

       When  you know you have a PBM image and want a PGM image, pbmtopgm is a
       more general way to do that conversion.



SEE ALSO
       ppmtoppm(1), pamtopam(1), pamtopnm(1), pbmtopgm(1), pbm(1), pgm(1),


HISTORY
       This program was added to Netpbm in Release 10.9 (September 2002).



netpbm documentation		September 2002	       Pgmtopgm User Manual(0)