I've updated the review (
https://www.mobileread.com/forums/sho...04&postcount=2 ).
One of the issues for which I would like to get an answer is: how to get into
column mode?
Secondly, I have a few PDFs which are actually made of scans, and they display as completely white in the reader, with both applications. It's a little more common than other PDF problems so I'd liek to know if there is a know solution to that?