There was a time when many e-readers preferred electronic publication books (EPUBs) to other file formats. Every book enthusiast hopped on them because of the responsive display features and easy accessibility. However, things started to change when publishing companies discovered a more secure format. Don’t get it wrong — EPUB books are good. But if you want higher consistency and security, PDF is a better option. This article will talk about how to convert EPUB to PDF and the associated security issues.