With Word 2013 and 2016, you can convert a PDF into a Word document that you can edit. What this video shows about editing PDFs in Word 2013 also applies to Word 2016.
To convert a PDF into an editable Word document, you open it like you would any other document.
Click File > Open.
Choose the location of the PDF and click Browse.
Find the PDF and click Open.
The converted document might not have a perfect page-to-page correspondence with the original. For example, lines and pages may break at different locations. For more information, see Why does my PDF look different in Word?
Tip: The conversion works best with documents that are mostly text.
To learn about saving a document as a PDF, see Save as PDF.