Are the formal title of the document.
Do not have a full stop at the end.
Are sentence case.
Are always English on the English site and Îʶ¦ÓéÀÖ on the Îʶ¦ÓéÀÖ site. For example a PDF in English published to the Îʶ¦ÓéÀÖ site is presented with a Îʶ¦ÓéÀÖ title displayed on the page.