You receive a PDF file from a customer?
You can insert it into your CAD software, create a new layer with different colour, then make it current.
Now you can trace over the outline of your PDF file to create a new CAD drawing. Just be aware of scaling issues before use.
Alternatively we can supply PDF2CAD software with 12 months advantage support.
This will convert your PDF file directly into a CAD file which you can measure and edit. Again be aware of scaling issues.
Note that some PDF files may just be scanned images which still allow you to trace over.
Often though PDF files have originated from PDF creation software, so it's surprising how useful a converted PDF file can be, when converted.