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 com-
       pressed 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 typi-
       cally 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	 con-
       tinuous-tone  and  white-on-black  images.  For these images, it some-
       times 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 dimen-
		 sions.	  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 gener-
       ated  due  to  transmission  errors  in	received  facsimile.   fax2ps
       attempts	 to recover from such data errors by resynchronizing decoding
       at the end of the current scanline.  This can result in long  horizon-
       tal 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 com-
       pressing the output and just generate POSTSCRIPT to image  the  bitmap
       raster instead.

SEE ALSO
       tiff2ps(1), libtiff(3)



				March 16, 1995			    FAX2PS(1)

UNIX/Linux commands referenced on this page:

1. convert
2. more
3. link
4. as
5. bitmap
6. at