When you create magazine style publications, or books with large signatures, an issue can occur due to the folding of the paper: after a signature has been folded, the inner pages will progressively creep outward. If the paper gets trimmed, the result is that the inner pages will actually be shorter than the outer pages. If the signature is large enough this may mean that some of the content at the edge of the inner pages gets trimmed off, or comes uncomfortably close to the margins. The automatic creep compensation built into PDF Nomad 2 will counter this issue by offsetting the page content of the inner pages progressively towards the center of the paper. For this to work, the thickness of the physical sheet of paper needs to be known.
Measuring the thickness of a single sheet of paper is not
practical. It is easier to take a stack of paper, measure its
thickness and then calculate the thickness of a single sheet of paper
from it, by dividing the measured thickness by the number of sheets in
the stack. Then enter that amount into the Paper Thickness
field in the imposition dialog.
Example:
if you have a stack of 500 sheets, measure the height of the stack
using a ruler or a caliper, then divide the result through 500. Enter
the result of the division into the Paper Thickness
field.
