Hi Wayne,
I am not sure if we should do that with all supporting documents!!
This is because in the Instruction Guide under the "Reminders..." section (i.e., located just after Step 4. Mail the application), it is stated that "You have included original translation and an affidavit by the translator for any documents that are not in English or French" in order to avoid application being returned.
It is a bit confusing :'( :'( :'( cause in section "6. Additional documents (as required)" under "Step 1. Gathering documents" of the Instruction Guide, it is stated that the required format for "translations of documents that are not in English or French" is "Clear and legible photocopy".
More confusing you will get once you read what is written under "Translation of documents" section where they stated the following:
Translation of documents
Any document that is not in English or French must be accompanied by:
the English or French translation; and
an affidavit from the person who completed the translation; and
a certified copy of the original document.
Therefore, I was thinking it would be a good idea to send the original of those supporting document (original translation) with the application. Or, at least a certified copy of original pages!!