Which language must documents be translated into for a business visa for Canada, and who may certify them?

In brief, before the detail — language rules: English-speaking destinations usually accept a certified English translation, while Schengen states, Japan, Korea and China may require the official language of that country or a translator recognised by that embassy. We verify the destination's current requirement before translation begins so nothing has to be redone. Note: the approval decision belongs to the destination authority; our role is to make the document set correct and complete.