g3cat - concatenate multiple g3 documents
g3cat [-l] [-a] g3-file1 ...
concatenates g3 files. These can either be 'raw', that is, bitmaps
packed according to the CCITT T.4 standard for one-dimensional bitmap
encoding, or 'digifax' files, created by GNU's GhostScript package with the
drivers. Its output is a concatenation of all the input files,
in raw G3 format, with two white lines in between.
If a - is given as input file, stdin is used.
If the input data is malformed, a warning is printed to stderr, and the output
file will have a blank line at this place.
- separate files with a one-pixel wide black line.
- -h <blank lines>
- specifies the number of blank lines g3cat should
prepend to each page. Default is 0.
- -L <lines>
- limit lenght of output page to maximum <lines>
- -w <width>
- specifies the desired page width in pixels per line.
Default is 1728 PELs, and this is mandatory if you want to send the fax to
a standard fax machine. If one of the input files doesn't match this line
width (for example because it was created by a broken G3 creator), a
warning is printed, and the line width is transparently fixed.
- byte-align the end-of-line codes (EOL) in the file. Every
EOL will end at a byte boundary, that is, with a 01 byte.
- -p <pad>
- specifies a minimum number of bytes that each output line
must be padded to. Padding is done with 0-bits before the EOL code.
- suppress output of end-of-page code (RTC).
The following example will put a header line on a given g3 page, 'page1' and put
the result into 'page2':
echo '$header' | pbmtext | pbm2g3 | g3cat - page1 >page2
Hopefully none :-).
g32pbm(1), sendfax(8), faxspool(1)
is Copyright (C) 1993 by Gert Doering,