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Pbmtog3 User Manual(0) Pbmtog3 User Manual(0)
NAME
pbmtog3 - convert a PBM image into a Group 3 MH fax file
SYNOPSIS
pbmtog3 [-reversebits] [-nofixedwidth] [pbmfile]
DESCRIPTION
This program is part of Netpbm(1)
pbmtog3 reads a PBM image as input and produces a Group 3 MH fax file
as output.
You can also generate a TIFF file that uses the same encoding inside,
with pamtotiff.
There is no program in Netpbm that generates other fax formats, such as
MR and MMR, but pamtotiff can generate TIFF files that use those encod-
ings.
OPTIONS
-reversebits
This option causes the output to have the bits in every byte
reversed so the least significant bit becomes the most signifi-
cant 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 when you try to read the G3 file (e.g. with
g3topbm), 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
pbmtog3 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). Before that,
pbmtog3 always kept the width of the original image.
SEE ALSO
g3topbm(1) , pamtotiff(1) , pbm(5)
faxformats(1)
AUTHOR
Copyright (C) 1989 by Paul Haeberli <paul@manray.sgi.com>.
netpbm documentation 03 December 2008 Pbmtog3 User Manual(0)
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