Certified copy in non English country

I couldn't find this information anywhere. I need to have certified copies of documents for my ACS skills assessment. The question is what if the stamp on certified copy is not in English? Is it still valid? Ofc I could get a translation but then the translation needs to be certified too and here we get to the endless certification circle Do you guys know how to solve this problem? Or maybe I will need to take a trip to England just to get few stamps?