I was scanning a booklet into PDF formatted files; but I really only wanted one file and couldn’t remember how to make the scanner do the work.
So I looked around and found this easy and free software: PDFbinder (and downloaded it from CNET).
Wow it worked, it wasn’t intrusive to install, and it was quick; all I had to do was adding the files I wanted to merge; move them around into sequence and press “Bind” then tell it the new name and where to save it.
That was all. Great stuff.