PDF files are really popular as a format, because they can be viewed on any device and they always keep formatting intact. For this reason, they are often used to present e-books and e-brochures. However, they can be bland to read. Flip PDF for Android cures that by letting you add page flipping to your PDF, so you can see animated pages go by as you read. This creates the sensation of a professional digital book, plus you can present them as complete apps. This could be very useful for publishers.