What is the best format for recording magazine content on iPad?

Question

CMS

Good afternoon.
Received an order for the development of the "Journal" application on the iPad.
I think many have seen applications of this kind.
There are not only photos and text on the pages, but there are also videos.
The question is as follows:
In what format is it better to upload pages? (HTML5, PDF, or something else?)
Thanks.

Answer 1

HTML5 is the easiest option.
Just package your website with
phonegap.com

Answer 2

I think that pdf.

Answer 3

Definitely PDF. This is a kind of "magazine standard".