1pbm2g3(1)                    mgetty+sendfax manual                   pbm2g3(1)
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NAME

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

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

12       Reads  a  portable bitmap as input, converting it into a G3 fax file on
13       stdout. That file is suitable for faxing it with sendfax(8) or queueing
14       it  for  faxing  with faxspool(1) (provided that it gets a ``.g3'' suf‐
15       fix).
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17       faxspool(1) uses pbm2g3(1) internally to convert various bitmap formats
18       into fax g3 format.
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OPTIONS

21       -a     byte-aligns  the  end-of-line  codes,  inserting padding bits as
22              necessary.
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24       -w <page width>
25              sets the width of the resulting G3 page. Default is 1728. If you
26              want to be able to fax it with sendfax, don't use anything else.
27              For other fax programs, 2048, 2432, 864 and 1216 may be  useful.
28              For other purposes, use what you like.
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30              If you set it to 0, the width of the pbm file will be used.
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32       -h <blank lines>
33              specifies  the  number  of  blank lines pbm2g3 should prepend to
34              each page. Default is 0.
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36              To produce identical output as pbmplus' pbm2g3 program (with  my
37              patch!)  does, use ``-h 4''.
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39       -r     reverse the bit order in the bytes.
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41       -d     will one day make pbm2g3 prepend a digifax header to the page.
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REFERENCES

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

48       The -d option isn't implemented yet.
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50       If a raw pbm file is converted, and the width of the g3 file is smaller
51       than the width of the pbm file, the former is rounded up  to  the  next
52       multiple of 8.
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SEE ALSO

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

58       pbm2g3 is Copyright (C) 1993 by Gert Doering, <gert@greenie.muc.de>. It
59       is similar to the pbmtog3 program in Jef  Poskanzers  pbmplus  package,
60       but it's a complete re-write. No code is copied.
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64greenie                            27 Oct 93                         pbm2g3(1)
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