Also, if you touch "+" button in E-Book Window, there's an option to load a directory with png sequence, so you can use a website where you convert a pdf file into a png sequence (it's a faster way), extract it into a directory (folder) and that's all - w-)
I understand that you may feel uncomfortable doing all that process instead of being able to load the file directly, and I'll take care to make this process as fast as close to "out-of-the-box", but that will be soon---