The result was amazingly bad on one trial HTML page; font (Verdana) was mostly far too small. This is a smart page that checks the display size and re-sets em

The result was amazingly bad on one trial HTML page; font (Verdana) was mostly far too small. This is a smart page that checks the display size and re-sets em measurements for DIV's and text to account for the increasing density of displays, so it's not entirely typical, but not weird either. But the resulting PDF is useless, whereas printing to PDF in the usual way works perfectly.