[-x n] [-y n] [-h n] [-w n] -o outputfile inputfile
tiffcut utility extracts an arbitrary rectangle from a TIFF file
and creates a new TIFF file containing the portion of the image cut out of
the original TIFF file.
This example extracts a signature from a page that has been scanned in (or received by fax). This example assumes that the signature is contained within an area that is one inch top to bottom and three inches left to right, and that the upper left-hand corner of the signature area is four inches down from the top of the page and two inches in from the left edge of the page.
tiffcut -x 2i -y 4i -h 1i -w 3i -o signature page.tif