Of course, if you still need or want to print a copy of the document for review, you can do so with or without the redlines. With the tool active, modifications show as suggestions you can approve or reject instead of immediately taking effect.
The track changes feature enables you and those around you to make changes to your documents for review. The days of circulating a paper copy for review are over. Word comes preloaded with some great basic features for lawyers who spend full days scrutinizing and composing legal documents. Microsoft Office for Lawyers: The Powerhouse Tool