What would be the best way to convert PDF (attached) to either DXF or DWG?
Able2extract is a stand-alone program for doing this kind of conversion and it does a really good job. It costs about $100. However, in your case, where you've been given all of the dimensions, I'd just recreate the file in SolidWorks and generate the flat pattern or DXF files from there.
Retrieving data ...