How can I delete a scanned image from the app?

There are two ways of doing it. You can delete the scanned image from the listing screen as well as from the text screen.

If you want to delete from the listing screen, you just need to long tap on the item and a Delete icon will appear at the top right corner of the list. You have to tap on the Delete icon, the app will ask you to confirm and once you confirm, the item will be deleted.

If you want to Delete from the text edit screen, you have to tap on the Delete icon which is given at the top right corner of this screen too.