Thanks for the quick replies.
I was hoping to a free solution with what I have.
Using Acrobat as the scanning software dose not work well. It dose not let me select a paper size. it is grayed out. Also it will not scan the back side of a page. The WF3640 scanner gives the same error message as when I scan from scanner keyboard, or epson scanner software.
But it dose let me chose to scan more pages, or scan backsides of pages. I test and see....
That worked!!! all pages in order.!!
I have to cut them in half but I know how to do that. !!!