There is a "Print border" checkbox on the print dialog that should control if the border is printed or not. You cannot change the way Acrobat places the two pages on one sheet. If you need more control, you need an imposition application that allows you to place two pages on a new page - this function is not built into Acrobat. My tool of choice is Quite Imposing Plus. If all you need to use it is this task, Quite Imposing is probably too expensive, but you need to look into finding a true imposition tool if you want to get rid of the margins.
Karl Heinz Kremer
PDF Acrobatics Without a Net
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