PDM Pro 2016 PDF Plugin

Can someone please explain to me how the new mapping of PDF properties in PDM Pro 2016 works.

In the what's new document it talks about the PDF plug-in, do I need to install that?

We currently use 'Description' as the title of our documents. I see that PDF's use 'title' as a custom property if I input the document name into 'Title in the PDF file how can I map that to 'Description'.

I guess I really don't understand how custom properties and mapping is supposed to work with PDF files.

Thanks,

SolidworksSolidworks Pdm enterprise Pdm