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FAX2PS(1)                                                            FAX2PS(1)



NAME
       fax2ps - convert a TIFF facsimile to compressed PostScript(TM)

SYNOPSIS
       fax2ps [ options ] [ file ... ]

DESCRIPTION
       fax2ps  reads one or more TIFF facsimile image files and prints a compressed form of PostScript on the standard
       output that is suitable for printing.

       By default, each page is scaled to reflect the image dimensions and resolutions stored in the file.  The -x and
       -y options can be used to specify the horizontal and vertical image resolutions (lines/inch), respectively.  If
       the -S option is specified, each page is scaled to fill an output page.  The default output page is 8.5  by  11
       inches.  Alternate page dimensions can be specified in inches with the -W and -H options.

       By  default  fax2ps generates PostScript for all pages in the file.  The -p option can be used to select one or
       more pages from a multi-page document.

       fax2ps generates a compressed form of PostScript that is optimized for sending pages of text  to  a  PostScript
       printer  attached  to a host through a low-speed link (such as a serial line).  Each output page is filled with
       white and then only the black areas are drawn.  The PostScript specification of the black drawing operations is
       optimized  by  using a special font that encodes the move-draw operations required to fill the black regions on
       the page.  This compression scheme typically results in a substantially reduced PostScript  description,  rela-
       tive to the straightforward imaging of the page with a PostScript image operator.  This algorithm can, however,
       be ineffective for continuous-tone and white-on-black images.  For these images, it sometimes is more efficient
       to send the raster bitmap image directly; see tiff2ps(1).

OPTIONS
       -p number Print  only  the  indicated  page.  Multiple pages may be printed by specifying this option more than
                 once.

       -x resolution
                 Use resolution as the horizontal resolution, in dots/inch, of the image data.  By default this  value
                 is taken from the file.

       -y resolution
                 Use  resolution  as the vertical resolution, in lines/inch, of the image data.  By default this value
                 is taken from the file.

       -S        Scale each page of image data to fill the output page dimensions.  By default  images  are  presented
                 according to the dimension information recorded in the TIFF file.

       -W width  Use width as the width, in inches, of the output page.

       -H height Use height as the height, in inches, of the output page.

DIAGNOSTICS
       Some messages about malformed TIFF images come from the TIFF library.

       Various messages about badly formatted facsimile images may be generated due to transmission errors in received
       facsimile.  fax2ps attempts to recover from such data errors by resynchronizing decoding at the end of the cur-
       rent scanline.  This can result in long horizontal black lines in the resultant PostScript image.

NOTES
       If  the  destination  printer  supports  PostScript  Level II then it is always faster to just send the encoded
       bitmap generated by the tiff2ps(1) program.

BUGS
       fax2ps should probably figure out when it is doing a poor job of  compressing  the  output  and  just  generate
       PostScript to image the bitmap raster instead.

SEE ALSO
       tiff2ps(1), libtiff(3)

       Libtiff library home page: http://www.remotesensing.org/libtiff/



libtiff                        November 2, 2005                      FAX2PS(1)