It seems there is no more pdf preview available since Aperture 3.5 (I'm using 3.5.1) available? There was a preview button in the book buy dialog 3.4, which also allowed saving the preview as pdf.
I'm afraid I'm not much help. I just checked some PDFs in Aperture 3.5.1 and they read just fine. Maybe I don't understand the question
It is still there, just liked described in this support document:
iPhoto, Aperture: Previewing an order in iPhoto or Aperture
is that button missing from this panel, or have you been looking at a different panel?
If the button is missing, try if you can preview a book, if you open a different Aperture library - create one for testing. If a different library also does not work, try to launch Aperture from a different user user account, for example the gust account. Can you there preview a book?
I know that it has been a while since you posted this but i was looking for a solution too. It turns out that you need to sign in and provide all of your payment credentials before Aperture will provide you with the option of previewing. Hope this helps.
No more pdf book preview in Aperture 3.5?
