TIFF2PS(1)

NAME

tiff2ps - convert a TIFF image to PostScript(TM)

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; overriding 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 split in several pages. Option -L may be used for specifying size of split images overlapping.

-W Specify the maximum width of image (in inches). Images with

larger sizes will be split in several pages. Options -L and -W are mutually exclusive. -i Enable/disable pixel interpolation. This option requires a single numeric value: zero to disable pixel interpolation and non-zero to enable. The default is enabled.

-L Specify the size of overlapping for split images (in inches).

Used in conjunction 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 suppresses this behavior. 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 facsimile:

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 split 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 readability).

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. Matters are even worse for 4-, 2-, and 1-bit palette images.

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

SEE ALSO

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

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

libtiff November 2, 2005 TIFF2PS(1)