I had high hopes of this software but in fact it is riddled with bugs and some really stupid features that cannot be removed.
First thing I noticed was that system startup suddenly increased by a huge amount, so that now my PC takes 4 minutes to start whereas before installing this software it took about 2 mins.
Word documents converted well, Excel documents did not. It does not convert web pages that contain CSS, which is pretty much all web pages. The conversion results were horrific.
I began to hate this program so much that I uninstalled it and bought Adobe Flashpaper 2.0 instead. However, having uninstalled PDF Converter 4, my PC still takes ages to boot. I also asked for my money back from ScanSoft (now Nuance), but although they started the process about a month ago I have not heard anything.
BTW, the software has to be 'activated' over the net.
Tech support does not exist, the company is impossible to deal with, so I would avoid this product at all costs. It is RUBBISH!