Basically. InDesign has the page setup as a button inside the print dialog box rather than a separate menu item.
I've tried it again, just to be sure.
Although I can create the custom paper size, it doesn't allow me to choose it, nor does it come up in the list. It shows only as Custom, greyed out. If I choose the Determined by Driver option, there's a little thumbnail of how the document will be positioned on the page, which changes when you change the page size.
I also tried it in Word, with no luck at all. I placed a large picture on a page in Word and sized it at 100%. When I go into the page setup box to create the custom size, I can create the custom paper size, but it doesn't change what the document looks like on my screen. The image is still off the page.
HOwever, if I choose a page size that's in the list, the layout of the word doc changes with it.
I think I'm going to post something about this on the Adobe site too, see if anyone has any info. If I recall correctly, I couldn't get this to work in OS9 either.
Thanks.--d