Which pages this is actually about
English is what a Namibian reader expects, and most of a Derby file is already there. The work sits on the rest: a diploma from another country, a certificate issued abroad, a record from a former place of residence. Sorting the bundle into English and not-English on the first day turns a vague job into a short list you can count on one hand.
Nothing goes on a round trip
A page already in English does not get rewritten. There is no version of this job in which your English certificate comes back as a slightly different English certificate, and anyone proposing that is selling a signature on nothing. What an English page may need is a fresh, readable copy rather than a fifth-generation photocopy of a photocopy.
The annex is part of the document
Foreign records rarely travel alone. A transcript sits behind a degree, an official annex may be stapled to a certificate, and a stamp in another language is often printed across the reverse. All of that is text, and all of it is rendered along with the front page, because a reader following a detail lands on precisely the sheet people leave out.
The rate, and the days
Pricing is £25 for each side as issued, which makes a mixed bundle easy to estimate: count only the sides that are not in English. Standard turnaround is 2–3 business days from a clean image, with 24 hours on the express route. Nothing about the rate shifts with the source language, so an unusual one costs the same as a common one.