A:Answer Hi deb, Use Epson Scan 2 which is included with the Expression XP-7100. On the Main Settings tab, select PDF as the Image Format type and check the Add or edit pages after scanning box. After you scan a stack of documents in the auto document feeder, or a single sheet on the scan glass, the software will ask you if you want to add more pages. Once you complete all of your pages, they will be saved as a single PDF file. Regards, Mark - The Epson Team.