Labels versus meaning
Denmark works in Danish, so an English record has to travel with a Danish text beside it. The work is not a word-for-word swap, though. Every sheet holds two kinds of writing: parts that mean something, and parts that name something. The first kind is translated. The second kind is copied over exactly as printed.
Get that line wrong and the sheet stops being useful. A reader in Denmark is often trying to match your record against a form, a database or a letter. They do that on names. Change one and the match fails, even though every word on the page is now perfectly good Danish.
Addresses and issuing bodies
Addresses are the clearest case. A certified translation into Danish in Nottingham keeps the house number, the street, the town and the postcode in their printed form, and adds a plain gloss only where a word is doing real work, such as a label meaning district or county. The address stays something a reader can put in an envelope.
The same holds for the body that issued the paper. Nottingham Register Office, at The Council House, Old Market Square, Nottingham NG1 2DT, issues certified copies of births, marriages and deaths. That name is carried over as it stands, because it is the thread back to where the record lives.
How the finished page is checked
An official Danish translation in Nottingham is read back against the source twice: once for sense, once for names. The second pass is slower and duller, and it is where problems get caught. Every proper name, every number and every date on the source has to appear on the new sheet in the same shape.
You can help that pass in one minute. Scan in colour and keep the whole sheet in frame, edges included, so the footer and the header are readable. Small print at the bottom of a certificate often holds the office name or a reference, and a scan that clips it forces a guess where none should be made.