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.

The fact is, ebooks are still going through a lot of growing pains, which often leaves ebook early adopters like you in the lurch. As the always excellent Matt Buchanan over at Gizmodo explained, the ...