1. Go to File > Open.

  2. Find the PDF, and open it (you might have to select Browse and find the PDF in a folder).

  3. Word tells you that it's going to make a copy of the PDF and convert its contents into a format that Word can display. The original PDF won't be changed at all. Select OK.

Note: 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.


Source: Microsoft