I am actually wondering if I need to translate those stamps after all. In the document it's written:
You are required to provide complete colour photocopies of all passports and/or travel documents that were valid during your five (5) year Eligibility Period*, even if now expired. You must provide a colour photocopy of every page (including blank pages without any stamps).
Note: Any documents that are not in English or French must be accompanied by:
- the English or French translation; and
- an affidavit from the person who completed the translation.
However, the document itself is in English, and there is nothing specifically about translating stamps.