tiff2ps



TIFF2PS(1)                                                          TIFF2PS(1)




NAME

       tiff2ps - convert a TIFF image to POSTSCRIPTâ„¢


SYNOPSIS

       tiff2ps [ options ] input.tif ...


DESCRIPTION

       tiff2ps  reads  TIFF  images  and  writes  POSTSCRIPT  or  Encapsulated
       POSTSCRIPT (EPS) on the standard output.  By  default,  tiff2ps  writes
       Encapsulated POSTSCRIPT for the first image in the specified TIFF image
       file.

       By default, tiff2ps will generate POSTSCRIPT that fills a printed  area
       specified  by  the  TIFF  tags in the input file.  If the file does not
       contain XResolution or YResolution tags, then the printed area  is  set
       according  to  the image dimensions.  The -w and -h options (see below)
       can be used to set the dimensions of the printed area in inches;  over-
       riding any relevant TIFF tags.

       The  POSTSCRIPT  generated  for  RGB, palette, and CMYK images uses the
       colorimage  operator.   The  POSTSCRIPT  generated  for  greyscale  and
       bilevel  images  uses the image operator.  When the colorimage operator
       is used, POSTSCRIPT code to emulate this operator on  older  POSTSCRIPT
       printers  is also generated.  Note that this emulation code can be very
       slow.

       Color images with associated alpha data are  composited  over  a  white
       background.


OPTIONS

       -1     Generate POSTSCRIPT Level 1 (the default).

       -2     Generate POSTSCRIPT Level 2.

       -3     Generate  POSTSCRIPT Level 3. It basically allows one to use the
              /flateDecode filter for ZIP compressed TIFF images.

       -a     Generate output for all IFDs (pages) in the input file.

       -b     Specify the bottom margin for the output (in inches). This  does
              not affect the height of the printed image.

       -c     Center the image in the output. This option only shows an effect
              if both the -w and the -h option are given.

       -d     Set the initial TIFF directory to the specified  directory  num-
              ber.   (NB:  directories  are  numbered starting at zero.)  This
              option is useful for selecting individual pages in a  multi-page
              (e.g. facsimile) file.

       -e     Force the generation of Encapsulated POSTSCRIPT (implies -z).

       -h     Specify the vertical size of the printed area (in inches).

       -H     Specify  the  maximum  height  of image (in inches). Images with
              larger sizes will be splitted in several pages. Option -L may be
              used for specifying size of splitted images overlapping.

       -i     Enable/disable pixel interpolation.  This option requires a sin-
              gle numeric value: zero to disable pixel interpolation and  non-
              zero to enable.  The default is enabled.

       -L     Specify the size of overlapping for splitted images (in inches).
              Used in conjuction with -H option.

       -l     Specify the left margin for the output (in  inches).  This  does
              not affect the width of the printed image.

       -m     Where  possible  render  using the imagemask POSTSCRIPT operator
              instead of the image operator.  When this  option  is  specified
              tiff2ps  will use imagemask for rendering 1 bit deep images.  If
              this option is not specified or if the image  depth  is  greater
              than 1 then the image operator is used.

       -o     Set  the initial TIFF directory to the IFD at the specified file
              offset.  This option is useful for  selecting  thumbnail  images
              and the like which are hidden using the SubIFD tag.

       -p     Force the generation of (non-Encapsulated) POSTSCRIPT.

       -r     Rotate image by 180 degrees.

       -s     Generate output for a single IFD (page) in the input file.

       -w     Specify the horizontal size of the printed area (in inches).

       -x     Override  resolution units specified in the TIFF as centimeters.

       -y     Override resolution units specified in the TIFF as inches.

       -z     When generating POSTSCRIPT Level 2, data is scaled  so  that  it
              does  not  image  into  the deadzone on a page (the outer margin
              that the printing device is unable to mark).  This  option  sup-
              presses  this  behaviour.  When POSTSCRIPT Level 1 is generated,
              data is imaged to the entire printed page and this option has no
              affect.


EXAMPLES

       The  following  generates POSTSCRIPT Level 2 for all pages of a facsim-
       ile:
              tiff2ps -a2 fax.tif | lpr
       Note also that if you have version 2.6.1 or newer of  Ghostscript  then
       you can efficiently preview facsimile generated with the above command.

       To generate Encapsulated POSTSCRIPT for a the image at directory  2  of
       an image use:
              tiff2ps -d 1 foo.tif
       (notice that directories are numbered starting at zero.)

       If you have a long image, it may be splitted in several pages:
              tiff2ps -h11 -w8.5 -H14 -L.5 foo.tif > foo.ps
       The  page  size is set to 8.5x11 by -w and -h options. We will accept a
       small amount of vertical compression,  so  -H  set  to  14.  Any  pages
       between  11 and 14 inches will be fit onto one page.  Pages longer than
       14 inches are cut off at 11 and continued on the next  page.  The  -L.5
       option  says  to  repeat a half inch on the next page (to improve read-
       ability).


BUGS

       Because POSTSCRIPT does not support the notion  of  a  colormap,  8-bit
       palette  images  produce  24-bit  POSTSCRIPT  images.   This conversion
       results in output that is six times bigger than the original image  and
       which  takes a long time to send to a printer over a serial line.  Mat-
       ters are even worse for 4-, 2-, and 1-bit palette images.


BUGS

       Does not handle tiled images when generating PS Level I output.


SEE ALSO

       pal2rgb(1),   tiffinfo(1),   tiffcp(1),    tiffgt(1),    tiffmedian(1),
       tiff2bw(1), tiffsv(1), libtiff(3)



                               January 27, 1997                     TIFF2PS(1)

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