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pbm2g3(1)


NAME

   pbm2g3 - convert portable bitmaps (PBM) into G3 fax files

SYNOPSIS

   pbm2g3 [-r] [-w<pagewidth>] [-h<blanklines>] [-d] [-a] [pbmfile]

DESCRIPTION

   Reads  a  portable bitmap as input, converting it into a G3 fax file on
   stdout. That file is suitable for faxing it with sendfax(8) or queueing
   it  for  faxing  with  faxspool(1)  (provided  that  it  gets a ``.g3''
   suffix).

   faxspool(1) uses pbm2g3(1) internally to convert various bitmap formats
   into fax g3 format.

OPTIONS

   -a     byte-aligns  the  end-of-line  codes,  inserting padding bits as
          necessary.

   -w <page width>
          sets the width of the resulting G3 page. Default is 1728. If you
          want to be able to fax it with sendfax, don't use anything else.
          For other fax programs, 2048, 2432, 864 and 1216 may be  useful.
          For other purposes, use what you like.

          If you set it to 0, the width of the pbm file will be used.

   -h <blank lines>
          specifies  the  number  of  blank lines pbm2g3 should prepend to
          each page. Default is 0.

          To produce identical output as pbmplus' pbm2g3 program (with  my
          patch!)  does, use ``-h 4''.

   -r     reverse the bit order in the bytes.

   -d     will one day make pbm2g3 prepend a digifax header to the page.

REFERENCES

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

BUGS

   The -d option isn't implemented yet.

   If a raw pbm file is converted, and the width of the g3 file is smaller
   than the width of the pbm file, the former is rounded up  to  the  next
   multiple of 8.

SEE ALSO

   g32pbm(1), pbm(5), sendfax(8)

AUTHOR

   pbm2g3 is Copyright (C) 1993 by Gert Doering, <gert@greenie.muc.de>. It
   is similar to the pbmtog3 program in Jef  Poskanzers  pbmplus  package,
   but it's a complete re-write. No code is copied.



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