Read this in that pdf file.. translation copies need to be certified.. also all the photocopies as well. Therefore, bro, pretty much all supporting documents need to be notarized (certified).

Gather documents as listed. Check (ô€€») each item on the checklist and attach the checklist to your
documents (a paper clip will do). Place all documents in a sealed envelope. Do not send originals unless
otherwise stated. Send notarized photocopies of all documents except the police certificates, which must be
originals. If your documents are not in English or French, send a notarized (certified) translation with a copy
of the originals.