Then click on the button "Multiple Pages".
Press the button "Scan" and scan each page.
When you have finished the scan of multiple pages
click on the button "To PDF" (Image-2).
This works in Windows 7, Vista, XP, Windows Server 2008, etc.
The Freeware Program WinScan2PDF is suitable for Microsoft Windows : Servers 2000 / 2003 / 2005 / 2008 Win 98 / XP / Vista / Windows 7 / Windows-8 / x64 and x86 (x32)