You are required to have available the information necessary for the planned flight, inclusive whatever alternate planning you have made.
Your operations manual may specify what vendor to use but wether you chose [insert any company here] it remains your responsibility that the information is current and valid for your flight.
The question about photocopy or "original" could possibly end up being one about copyright, but none of the private vendors are approved for anything - except when they deliver data to your FMC navigation database.