In this Adobe Acrobat series of video the instructor shows how to combine comments in a PDF. When we receive comments as a part of a review of a document there is no need to view the comments is a separate document but you can view the comments in the same document. To do this go to the comments menu and select the option of import comments. Now from there you can select one or more PDF documents that contain the comments and integrate it to the current document. This video shows how to combine comments with the original PDF so that both can be viewed in the single master PDF document.