The settings under the Labels tab allow drawing the page labels (which usually consist of page numbers) onto each page.
Controls whether and at what end of the page (top or bottom) the labels will be drawn.
Allows setting the horizontal justification of the labels on each page and the distance they are drawn away from the page's edge. Note that the horizontal margin has no effect if the labels are centre justified.
Controls how much of the page's contents is allowed to shine through the box. The greater the opacity the less of the page shines through.
Sets the font used to draw the labels.