+1(514) 937-9445 or Toll-free (Canada & US) +1 (888) 947-9445
Can i click images with my camera for all documents (passport, marriage certificate etc) instead of scanning?
Use Cam Scanner.

Since you are in US, why dont you do everything professionally. A piece of advice, Dont risk your PR by asking questions on photos, scans and all. Go professional, spend some money. Its Canadian PR. If its not your dream, why wasting time on it????