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g3cat(1)


NAME

   g3cat - concatenate multiple g3 documents

SYNOPSIS

   g3cat [-l] [-a] g3-file1 ...

DESCRIPTION

   g3cat  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 digifax 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.

OPTIONS

   -l     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> lines.

SPECIAL-CASE OPTIONS

   -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.

   -a     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.

   -R     suppress output of end-of-page code (RTC).

Example

   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

FILES

   --

BUGS

   Hopefully none :-).

SEE ALSO

   g32pbm(1), sendfax(8), faxspool(1)

AUTHORS

   g3cat is Copyright (C) 1993 by Gert Doering, <gert@greenie.muc.de>



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