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       pdf2fax   -   image   Portable   Document  Format  file  for  facsimile
       transmission by HylaFAX


       /var/spool/hylafax/bin/pdf2fax [ options ] [ files...  ]


       pdf2fax takes Portable Document Format (PDF) input and generates a TIFF
       Class  F image file suitable for facsimile transmission.  It is usually
       invoked by the HylaFAX scheduler  process,  faxq(8).   PDF  imaging  is
       typically done using the freely available Ghostscript software.

       pdf2fax  is  actually  a  link  (symbolic  or  otherwise) to the script
       appropriate for the PDF imaging tool.   The  link  is  setup  when  the
       faxsetup(8)  script  is  run  to configure a HylaFAX server machine for

       Input files containing PDF may be specified on the  command  line.   If
       none are given, then pdf2fax will read from standard input.

       By  default, pdf2fax will generate a 98 line/inch output document whose
       page width is 1728 pixels and page length is 297 mm (a standard A4 page
       at  low resolution).  Horizontal resolution is always 204 dpi.  Command
       line options may be used to select alternate  vertical  resolution  and
       page dimensions.

       If  no  filename  is  given,  pdf2fax writes its output to a file named
       pdf.fax; the -o option can be used to specify an alternate filename.

       By default, output is compressed using the standard Group 3 1D-encoding
       scheme,  with EOL codes padded to byte boundaries.  If the -2 option is
       specified, output is encoded with  the  optional  Group  3  2D-encoding
       scheme (EOL codes are still padded to byte boundaries).

       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.

       Note  that  bin/pdf2fax  is  usually just a link to a shell script that
       invokes the appropriate PDF RIP to do the work.


       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
                 pdf.fax 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 PDF.


       Before user-supplied PDF is passed to the PDF  interpreter,  a  limited
       number  of  operators  are  defined.   These  operators  are  operators
       commonly found in a LaserWriter printer and  (sometimes)  generated  by
       Macintosh-based applications.

       The  default  Display  PDF-based execution environment includes support
       for the following fonts:
       AvantGarde-Book           Helvetica-Bold                  Palatino-BoldItalic
       AvantGarde-BookOblique    Helvetica-BoldOblique           Palatino-Italic
       AvantGarde-Demi           Helvetica-Narrow                Palatino-Roman
       AvantGarde-DemiOblique    Helvetica-Narrow-Bold           StoneSerif
       Bookman-Demi              Helvetica-Narrow-BoldOblique    Symbol
       Bookman-DemiItalic        Helvetica-Narrow-Oblique        Tekton
       Bookman-Light             Helvetica-Oblique               Times-Bold
       Bookman-LightItalic       Lithos-Bold                     Times-BoldItalic
       Courier                   NewCenturySchlbk-Bold           Times-Italic
       Courier-Bold              NewCenturySchlbk-BoldItalic     Times-Roman
       Courier-BoldOblique       NewCenturySchlbk-Italic         ZapfChancery-MediumItalic
       Courier-Oblique           NewCenturySchlbk-Roman          ZapfDingbats
       Helvetica                 Palatino-Bold
       Note that this is the same set of fonts supported by the DPS  extension
       to the X server.

       The  default  Ghostscript-based  environment is more uncertain; consult
       the  Ghostscript  documentation  for  information  on  what  fonts  are


       Output  from  the  Display  PDF  version  of  this  command  is encoded
       according to the Display PDF binary encoding protocol.

       Ghostscript-based versions of this program fail to exit  with  non-zero
       status  when  an  invalid  PDF  document  is  processed;  this makes it
       problematic for the HylaFAX queue manager to determine when  a  problem
       arises when preparing a job for transmission.


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

                                March 08, 2001