Technology on its own doesn’t make something a digital experience. Reading a scan of a paper document, for example, isn’t a useful interaction to include within the scope of this definition because it doesn’t offer anything experientially different than reading a physical copy would.
Companies should think of digital experiences as processes that do what a physical process cannot. A scanned document can convey written information as well as a piece of paper, whereas a digitally enhanced pdf can include cross-references to other documents, right-click definitions, online collaborations, auto-translations and digital signatures.
As another example, event registration software that allows you to download a list of registrants and their information is digitizing the manual process of checking them in (i.e., instead of searching for names on a printed roster, you're searching a spreadsheet on your computer in order to confirm registration).
Contrast that against a system in which you can enter a registrant's name and view their registration status, process pending payments, confirm room information and check them in from a single dashboard. This takes separate physical processes and unites them with one digital solution to save time.