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       tiff2fax - convert TIFF for facsimile transmission by HylaFAX


       /var/spool/hylafax/bin/tiff2fax [ options ] file


       bin/tiff2fax  takes  TIFF input and generates a TIFF Class F image file
       suitable for facsimile transmission.  It  is  usually  invoked  by  the
       HylaFAX  scheduler  process,  faxq(8).  The default implementation uses
       the tiffcheck(8) program and  tools  from  the  freely  available  TIFF
       software distribution to implement the conversion operations.

       This  script can modify outgoing facsimile, such as watermarking, To do
       this create a shell script etc/FaxModify  in  the  spooling  area  that
       alters the document.


       The following operations are recognized:

       -1        Write Group 3 1D-encoded data to the output file.

       -2        Write Group 3 2D-encoded data to the output file.

       -3        Write Group 4 MMR-encoded data to the output file.

       -m pages  Set  the  maximum  number  of pages that are permitted in the
                 output file.  If more pages are present in the input document
                 then abort processing.

       -o file   Write  output  to  the  specified file instead of the default
                 foo.tif filename.

       -w width  Set the output page width, in pixels.  By default, pages  are
                 1728 pixels wide.

       -l length Set the output page length in millimeters.  By default, pages
                 are 297 millimeters long.

       -r vres   Set the vertical resolution, in lines/inch, at which to image
                 the POSTSCRIPT.


       /usr/sbin/tiffcheck              TIFF file conversion examiner
       /var/spool/hylafax/bin/ps2fax    POSTSCRIPT RIP for doing complicated conversions
       /usr/bin/tiffcp                  for converting compression schemes
       /usr/bin/tiff2ps                 for colorspace and/or image size conversions


       Conversions  that  require re-imaging and resizing may result in images
       that are poorly placed on the page.

       There is no way to  control  how  images  are  treated  when  they  are
       resized; e.g. the original aspect ratio is not always maintained.


       sendfax(1), faxq(8), hylafax-server(5)

                                 May 12, 1996