pnmtopnm

   Updated: 31 May 2004
   Table Of Contents

NAME

   pnmtopnm - copy a PNM image

SYNOPSIS

   pnmtopnm [pnmfile]

DESCRIPTION

   This program is part of Netpbm.

   pnmtopnm  simply  copies  a	PNM image to Standard Output. The
output has the
   same major PNM format (PBM, PGM, or PPM) and maxval as the in-
put. This may
   seem	 an  unnecessary duplication of cat, but it lets you con-
vert between the
   plain (ASCII) and raw (binary)  subformats  of  PNM.	 Use  the
-plain Netpbm
   common option to ensure the output is plain PNM, and don't use
-plain to
   ensure the output is raw PNM. See Common Options.

   You don't normally need to convert between the PNM subformats,
because any
   program  that uses the Netpbm library to read a PNM image will
read all of
   them directly. But there are a lot of programs that don't  use
the Netpbm
   library  and	 understand  only the raw format. Plain format is
nice because it
   is human readable; people often use it to debug programs  that
process PNM
   images.

HISTORY

   pnmtopnm was new in Netpbm 10.23 (July 2004). It obsoleted pn-
mtoplainpnm,
   which specifically did the conversion to plain PNM. There  was
no program to
   explicitly convert to raw PNM, but many Netpbm programs can be
made, with
   the right options, to be idempotent (i.e. to do the same thing
as pnmtopnm).

SEE ALSO

   ppmtoppm pgmtopgm pnm
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Table Of Contents

     * NAME
     * SYNOPSIS
     * DESCRIPTION
     * SEE ALSO

UNIX/Linux commands referenced on this page:

1. as
2. cat
3. raw
4. convert
5. which
6. ppmtoppm
7. pgmtopgm