Really, when you get down to it, unless the layout is very basic and the source material good quality, it is more useful to view the pdf in a viewer than expecting a great conversion. But, I do enjoy experimenting and trying to find the perfect solution. :P
This is doubly true for pdf's that are more textbook than novel. I doubt a converted pdf would properly show the formulas and tables you would need. But, keep trying and mess around. Maybe you will strike gold.