I haven't even tested JoomSEF.
1. I installed JoomDoc on a clean site (no plugins)
2. I turned on Search Engine Friendly URLs' in Global Configuration
3. JoomDoc does not work. (Works fine if Joomla SEF is turned off)

This is my problem.

Does JoomSEF rely on Global Configuration / Search Engine Friendly URL's to be enabled? I've had problems with the original docman not working when the Joomla SEF was enabled and noticed the same thing occuring with your program JoomDoc.

I am considering purchasing JoomSEF if it doesn't rely on Joomla Global Config/ SEF to be enabled, because I can use both your products with no problems.

Let me know so I can make my buying decision.

P.S. are you aware of the problem with JoomDoc not working when Joomla SEF's are enabled?

I look forward to your reply.