As of today you can't directly upload a PDF as the source of an article.There is some good info on this thread however:Batch create .article files?Good luck!

Hi Paolo,Push notifications will not be available on Android at launch. Analytics will be available on all three device platforms. You can get all the assorted device/app launch metrics, as well as track collection & article views, time spent on article, and hyperlink activations in content. There's probably a few others I'm forgetting about, but the core set will give you great insight into what content your customers are accessing.Neil