It happens, that if I select the common
\documentclass[12pt,twoside]{book}
\begin{document}
SOMETHING
\end{document},
the resolution of my transformed DjVu document, is not enough at the time of watching it by the djview (3th or 4th version). The problem seems to be more serious, because if I consider another situation, by instance, selecting the following web page (using firefox 3.04 browser), it turns out, that it is infeasible to read the file online appropriately without adjusting the scale, it est moving away from the goal of selecting doublesided as an optimum option for reading. I wonder also, as a consequence, if the default font size of 12pt as an option in book class/style, is the correct for this kind of doublesided documents.