The Ontario Highway Traffic Act clearly says a "true copy" is good enough.
http://www.e-laws.gov.on.ca/html/statutes/english/elaws_statutes_90h08_e.htm
Permit to be carried
(5) Subject to subsection (6), every driver of a motor vehicle on a highway shall carry,
(a) the permit for it or a true copy thereof; and
(b) where the motor vehicle is drawing a trailer, the permit for the trailer or a true copy thereof,
and shall surrender the permits or copies for inspection upon the demand of a police officer. R.S.O. 1990, c. H.8, s. 7 (5).