I've downloaded my purchases of the bridge and aerospace code books from AWS. My Dell 1720 printer will only let me duplex print manually. However, this is not possible with the code books, apparently, because of some sercurity measures imbedded in the publication. I understand the need to protect the publication, but the bridge code printed on one side only makes for an unnecessarily unwieldy book. Any workarounds? Could I save a file to disc and take it down to my local printer for duplex printing? I like their bindery better than the AWS pre-bound stuff and that is one reason I download instead of order a pre-bound book. Plus, I print on better paper, which for me, is worth the extra two dollars.