This is the thing from the Beech Talk thread
@Sierra_Hotel mentioned.
Yes.
https://www.faa.gov/documentLibrary/med ... _91_78.pdf
Electronic Flight Bag (EFB). An electronic display system intended primarily for cockpit or cabin use. EFB devices can display a variety of aviation data (e.g., checklists, navigation charts, pilot’s operating handbook (POH)) or perform basic calculations (e.g., performance data, fuel calculations).
...
EFBs/ECDs can be used during all phases of flight operations in lieu of paper reference material when the information displayed meets the following criteria:
(1) The components or systems onboard the aircraft which display precomposed or interactive information are the functional equivalent of the paper reference material.
(2) The interactive or precomposed information being used for navigation or performance planning is current, up-to-date, and valid.
In simple terms, scans of official paper documents are treated as if they were paper. They are precomposed (printed on paper) and they are current.