Yes, if any part of it isn't in English. Home Affairs asks for an English translation of every document not in English, uploaded together with a copy of the original.
That includes the parts people tend to forget: the registrar's stamp, a marginal note added years later, the handwritten line correcting a surname. We translate all of it, because a translation that skips the marginalia isn't a full translation, however tidy it looks.
For translations made inside Australia, Home Affairs looks for a NAATI credentialled translator. For translations made outside Australia, its guidance asks that the translator is identified by full name, contact details and details of their qualifications and experience. Our named-translator translations carry exactly that, so the case officer can see who stands behind the English.