You can insert a PDF into Word via the File, Open menu, which turns the PDF into an editable document, or as a non-editable image.

Microsoft has made it super easy to copy and insert a Word document into another Word document. This article explains how to do it.

How to Insert a Formatted Document Into a Word File. You may rely on Microsoft Word to prepare business correspondence, lay out documents such as annual reports or create marketing materials, but ...

Learn how to use the Paste Special command in many word processors (including Microsoft's); Word's file format options explained.