You will have to use the guide available for the ScandAll Pro application to learn how to scan a multi-page document to PDF or TIFF file format. To download the user guide, I recommend checking the websites listed through Google Search. Once you are on Google, you should also check video guides available on YouTube. The software by default supports the multi-page feature, but it needs to be configured. Choose the output file as PDF then access the configuration options and tick the option related to the multi-page format, and then you can start the operation. Once the option is checked and the scanning is started, the software will ask you if you want to input another document or finish the operation.