User Commands fax2ps(1)
NAME
fax2ps - convert a TIF facsimile to compressed PostScript
SYNOPSIS
fax2ps [options] [file]
DESCRIPTION
fax2ps reads one or more TIF facsimile image files and
prints a compressed form of PostScript that is suitable for
printing on the standard output.
OPTIONS
The following options are supported:
-H height Use height as the height, in inches, of the
output page. The default page height is 11
inches.
-p number Print only the indicated page. To print mul-
tiple pages, specify this option as often as
required.
-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 TIF file.
-W width Use width as the width, in inches, of the
output page. The default page width is 8.5
inches.
-x resolution Use resolution as the horizontal resolution,
in dots per inch, of the image data. By
default, this value is taken from the file.
-y resolution Use resolution as the vertical resolution,
in lines per inch, of the image data. By
default, this value is taken from the file.
SunOS 5.11 Last change: 26 Mar 2004 1
User Commands fax2ps(1)
OPERANDS
The following operands are supported:
file The name of the TIF facsimile image file to
be converted to compressed PostScript.
EXTENDED DESCRIPTION
By default, each page is scaled to reflect the image dimen-
sions and resolutions stored in the file. The -x and -y
options can be used to specify the horizontal and vertical
image resolutions, respectively. If the -S option is speci-
fied, 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. You can use the -p option to select one or more pages
from a multipage 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 descrip-
tion, relative to the straightforward imaging of the page
with a PostScript image operator. This algorithm can, how-
ever, 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). If
the destination printer supports PostScript Level I, it is
always faster to just send the encoded bitmap generated by
the tiff2ps(1) command.
Diagnostics
Some messages about malformed TIF images come from the TIF
library.
Various messages about badly formatted facsimile images may
be generated due to transmission errors in received fac-
simile. fax2ps attempts to recover from such data errors by
resynchronizing decoding at the end of the current scanline.
This can result in long horizontal black lines in the resul-
tant PostScript image.
SunOS 5.11 Last change: 26 Mar 2004 2
User Commands fax2ps(1)
EXAMPLES
Example 1: Converting the Tiff File test.tif to Compressed
PostScript
example% fax2ps test.tif
ATRIBUTES
See attributes(5) for descriptions of the following attri-
butes:
ATRIBUTE TYPE ATRIBUTE VALUE
Availability SUNWTiff
Interface stability Uncommitted
SEE ALSO
tiff2ps(1), libtiff(3)
NOTES
Updated by Breda McColgan, Sun Microsystems Inc., 2004.
SunOS 5.11 Last change: 26 Mar 2004 3
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