You have already helped alot. From your help this is what I understand. Take 8.5/11 Dividing each by two gives 4.25/5.5 . That's about a 4 to 5 ratio (4/5). So go to window, document size, width=425, height=550. Select Render options, set width = 850, height=1100 (8.5 x 10 and 11 * 10) That's equivalent to 8.5 x 11.0 . I tried doubleing the 850 x1100 (making it 1700 x 2200) and I didn't see a difference in size. maybe there is a difference in resolution - I'm not sure.