You must supply the dimensions of the original document or object in order to calculate file size,
resolution, and quality. If you plan to use a flatbed scanner,
it is also important to measure the document to be certain that
it will fit on the scanning bed. Most commercial flatbed scanners
range in dimensions from 8.5" x 14" to 12" x 17".
Enter width and height information in inches using decimal values
and/or fractions of halves, fourths, eighths and sixteenths only.
For centimeters, use integers with up to four digits to the right of
the decimal point.