You may be asking: "In the certificate holder's info, how can I wrap the text for their name, which is too long and cuts off on certificates?"
First "edit the" holder, then put the address on "Address Line 2," then use "Address Line 1" to break up their name. Alternatively, if the holder lists multiple entities (and the above trick does not help), you can use a shortened version of their name and list their full name in the "Notes" section as you send the certificate.