The fat32 formated partitions are EFI System Partitions used to boot your PC. I assume that sda3 is the one Windows created, while a later Linux install created sda5 as an alternative. Yet sda5 doesn’t seem to be really used (with that cute 9MB used), so your Linux boot stuff -including a bootloader that would allow you to start Windows (or you picking directly from EFI?)- is probably all sitting alongside Windows’ EFI stuff in sda3.
In fact I wouldn’t touch anything there without some backup.


Gnome normally brings their simple GNOME Document Scanner (
simple-scan), KDE comes withskanliteorskanpage.xsaneis an older GTK-based frontend, there’s also the GIMP plugin usingxsane.NAPS2is an independent fully-featured frontend. And a lot of dedicated OCR software (including stuff likeOCRFeederorPaperwork) also supports sane.PS: even the basic tools support previews, then letting you select only the specific area you want to scan.