Thank you for using the Support Forum. You can have more than 50 pages in a PDF. The page limit for the ADF is 50 pages but you can add pages to the ADF. I am not sure what the problem is that you are seeing. If you find that the file is limited then please make sure you have the File size is set to Maximum in the Advanced Setting in the network scanning. If this does not help please consider contacting your support centre for further assistance.
Thanks, CherylO-Xerox Community Manager
Be sure to click Kudos for those who have helped you. Select Accept as Solution for posts that have helped to solve your issue(s)!