Dear Logoscommunity,
I found a pdf-converter, which produces the best results, to make a pdf readable in Logos.It is Nuance PDF, an alternative to the much more expensive Product, we all know.
There ist a downloadoption to test it 15 days. At amazon the standard version costs $ 69.
I converted nearly 5000 pages of an old german science journal in the Docx-Format and the result is very good. And I successfully converted the puplic domain pdf commentaries of Theodor Zahn.
You can mark multiple files as a batch job and convert them on the fly.
Here is Link with a Test and an english youtube clip:
http://www.com-magazin.de/praxis/test/nuance-power-pdf-im-test-510179.html
Greetings from Cologne, Germany
Hermann