4 hours ago, SalishSea said:
Why not just order a certified copy of the marriage certificate???
USCIS will not accept some foreign ‘report of marriage’ in lieu of a legitimate marriage certificate.
I think the problem isn't ordering a copy. The OP is concerned about it being a felony to scan it to online account. I say just mail the application and certified copy, if in doubt. When you go for the interview, bring the original. Good luck!