iPad PDF book with clickable objects

I want to display a PDF document as a book in an application on the iPad. It has to have the "page flip" animation. I also nee开发者_开发问答d to have clickable areas in the PDF document. When a given area in the PDF is clicked a dialog should appear in the application.

I have been searching around this site but I have mostly come across answers suggesting HTML or saying that the iPad has a built-in PDF reader but that won't do it in my case.

I heard about the Leaves project and I have tried it out. It is easy to work with and gives the page flip animation I was looking for but as mentioned on the project's page, Leaves does not support interactive elements on a page.

Does anyone know of a way (preferably, a library) I can read a PDF, show it like a book and have clickable elements? It would be nice if I could just make the elements clickable inside the PDF and have the iPad application read these links.

The PDF will be created using Adobe InDesign.

My NDA with Apple forbids me to tell too much but after having watched some of the videos from WWDC 2011, I will close this question.