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 number. (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 and -W
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 90|180|270|auto
- Rotate image by 90, 180, 270 degrees or auto. Auto picks
the best fit for the image on the specified paper size (eg portrait or
landscape) if -h or -w is specified. Rotation is in degrees
counterclockwise. Auto rotates 90 degrees ccw to produce landscape.
- -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:
(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/