The language on the page
Afghanistan reads Persian, so a UK record sent there needs Persian text beside the English. Persian is written in a Perso-Arabic script that runs right to left, and the digits on the page often look different from the ones on your certificate. The translator carries both across without changing what the record says.
Who signs the work
The credential for this route is a certified Persian (Farsi) translator. That person writes the text, then signs a certificate of accuracy for it. An official Persian translation in Reading is complete only with that certificate in the bundle, because the signature is what turns good wording into an accepted file.
Cost and timing
Pricing runs by the page of the source, at about £25 per page, counted from the scan you send. Standard work takes 3-5 business days and express work returns in 48 hours. Because the count is by page and not by word, a crowded sheet does not cost more than a sparse one.
Papers that travel this way
Birth and marriage records, school and degree papers, police checks and company files all make this trip. A certified translation into Persian in Reading is ordered the same way for each of them: scan, translate, certify, return. A long file simply runs to more pages, and the page count sets the cost.
Keeping your own paper safe
Nothing you own needs to go in the mail for this. A clear scan is what the translator reads, and the certificate refers to that copy. Where the record is a civil one, a fresh certified copy can be ordered from Reading Register Office at Civic Offices, Bridge Street, Reading RG1 2LU, and used in place of the one you keep.