When you print this PDF make sure Page Scaling is set to "Fit to printable area", as shown here. This will prevent the map's edges from being cropped off.
Are these maps too small for you? You can enlarge them. When you print this PDF set Page Scaling to "Tile all pages" and for Tile Scale enter 180%, as shown here. The PDF will print out 2x bigger on 8 pages (4 pages for each of the existing 2 pages). If your printer uses an unusual paper size you may have to play around with the Tile Scale percentage to get this PDF to zoom properly.