In the print-preview window, I read that it would take 3900 pages.
To reduce the amount of pages, I selected the duplex-option, but the pagecount did not change.
But when I select another font-size (10pt instead of 12pt) the amount of required pages reduces from 3900 to 3090 pages.
So I guess, that the calculation-routine is not called when checking or unchecking that option.
BTW: I did this procedure only for fun. I'm not crazy enough to print 3900 pages with directory and file information for real

(Just for the record: This listing results in a 7MB PDF-File
