pbmtog3

   Updated: July 2002
   Table Of Contents

NAME

   pbmtog3 - convert a PBM image into a Group 3 fax file

SYNOPSIS

   pbmtog3 [-reversebits] [-nofixedwidth] [pbmfile]

DESCRIPTION

   pbmtog3  reads a PBM image as input and produces a Group 3 fax file as
   output.

OPTIONS

   -reversebits
          This option causes the output to have the bits in every byte reversed
          so  the  least  signficant bit becomes the most signficant bit.
          Apparently, there is some ambiguity in transmission protocols so that
          the bits get reversed on transmission, and this compensates for that.
          If you get a whole bunch of "bad code word" messages, try using this
          option. Note that the output is not G3 when you use this option.

   -nofixedwidth
          Most  fax machines expect the image to be 1728 columns wide, so
          pbmtog4 cuts the output to this width by default. If you want to keep
          the width of the original image, use this option.

          This option was new in Netpbm 10.6 (July 2002).



REFERENCES

   The standard for Group 3 fax is defined in CCITT Recommendation T.4.

SEE ALSO

   g3topbm, pbm

AUTHOR

   Copyright (C) 1989 by Paul Haeberli <paul@manray.sgi.com>.
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Table Of Contents

     * NAME
     * SYNOPSIS
     * DESCRIPTION
     * REFERENCES
     * SEE ALSO
     * AUTHOR