I've received mine. You have to fill out the Google form; they will add the PDFs to your Paizo account. If you don't have a Paizo account (I didn't), they will tell you to make one and write back to them so they can add it to your account.
It has a single-file PDF version, plus a collection of the chapters as separate PDFs. It has social DRM - it puts your name & email address in tiny grey text at the top and bottom of every page.