Adobe reader on Samsung Galaxy Tab A 10.1

I am using Adobe reader on a Samsung Galaxy Tab A 10.1 to show a presentation to a client. Problem is that in the edit mode the presentation is not scaled. So a part of the page is not visible, because it is behind the header and footer. I guess this has to do with the format of the tablet (10,1 inch). Is there a solution for this? We need to use the edit mode, because the client must have the opportunity to write comments in the presentation.