I'd like to look at my scans using an external app like a file manager. Where are they?
A JPEG image for each scan is saved in the "Droid Scan" folder at the root of the SD card. Any PDFs that you create are stored in the "Droid Scan Extras" folder at the root of the SD card.
Also, you can store a JPEG or PDF outside of Droid Scan's normal work space by using the Export to SD card feature.