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pbm2g3(1)		      mgetty+sendfax manual		       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 std-
     out. 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 neces-
	    sary.

     -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 multi-
     ple 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.

greenie 			    27 Oct 93			       pbm2g3(1)

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