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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 Output.  This may seem an unnecessary dupli-
       cation 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)