A PDF is a suitable file format for creating and reading e-books. However, if you want to open an e-book in most e-readers, like the Amazon Kindle and B&N Nook, you must first convert it to an EPUB.

When you buy an ebook from Amazon, it’s yours, right? Technically speaking, Amazon is merely licensing the book to you. And the company can, seemingly on a whim, close your account and delete all your ...