I have a new macbook pro and I'm trying to use my hp scanjet 4890 to scan in documents into a pdf file. I've download the HP Scan Pro software from HP's website. I'm trying to scan multiple pages on the glass into 1 pdf file. When I try to scan it will only scan and save 1 doc at a time. I have found a setting to prompt for additional scans but the system isn't doing that. Is this the best way to do this on a mac? Or am I just doing something wrong? Thanks for any help!!