On the second problem, how are you creating the PDF from DWF - printing to Adobe PDF printer from AutoDesk software?
Acrobat Professional provides a way to convert DWG/DWF to PDF which are richer in quality and smaller in size. You might want to take the trial version and see if that works for you.
I use the PDF printer. Is your suggested method available in previous profeesional versions? How do you do your suggested method? Thanks.
It has been a part of Acrobat for a while now but DWF was added in Acrobat 8, I believe. As far as older versions are concerned, the version of AutoCAD you have matters. See: http://blogs.adobe.com/pdfitmatters/2008/12/version_compatibility_of_acrob.html. In addition, AutoCAD 2009 is supported in Acrobat 9.1.
I would recommend downloading a trial copy of Acrobat and see if it meets your requirements.