I am building an interactive pdf of about 300 pages in InDesign. It will contain several hundred map illustrations (drawn in Illustrator) with tiny details and much smallish type.
If you wanted it to be viewable in as many devices as possible, including ipads, Android tablets and Windows and Mac desktops and laptops, what size, orientation and DPI resolution would you build the pages?
I started building pages in 768 x 1024 pixels, but this created a large pdf that needed to be reduced in size to view in most devices, which reduced and made unreadable some type in the illustrations.
Oops, said DPI when I meant PPI.
@John – What parts of the PDF will be interactive?
Thinking ePub. Fixed Layout…
Any pdf with detailed illustrations will be a massive file size to download - especially the more pages you add that have these detailed illustrations.
Fixed layout epub is a good option - but beware it's limited to ePub3 readers only (not even Adobe's own Digital Editions can read them - afaik)
Here's a good guide for you to follow in terms of resolution
And I agree with Uwe that you should consider having it coded in html5 - you'd get a much more universal product in the end.