If reviewers add comments to a PDF that was
created from a Microsoft Word document, you can update that document
by exporting the comments back into Word.
Note: You must have
all the comments in a single, tagged PDF.
Choose Comments > Export Comments To Word.
Select the PDF and Word documents.
Specify which comments you want to import.
(Optional) If you are importing text edits, click Integrate
Text Edits to apply each edit individually.