I have designed a wedding album using Aperture and now want to send it to Album Epoca or a third party printer for printing. The album size is 9X13. Album Epoca needs the pages sent to them as laid out in Aperture and as a jpeg. How do I do this? Can I save the book as a jpeg? How do I ensure that the pages are not saved individually as 9X13 pages. What do I do to ensure that when i have a 18X13 spread that it is saved that way. Any help would be appreciated.