A second bilingual linguist checks your translation before you file, publish, or print it.
Translation proofreading is an independent review of a finished translation by a second bilingual linguist, who checks it against the source for accuracy, terminology, numbers, and formatting before you file, publish, or print it. Prism Linguistics proofreads translations in 326 languages for US clients, with a written quote back within 60 minutes during business hours.
Maybe a bilingual employee translated a contract, a relative translated a birth certificate for a USCIS filing, or a machine tool produced ten thousand words of product copy overnight. The draft exists; what you don’t have is certainty. An independent review supplies it — a fresh, qualified pair of eyes reading the translation against the original, in any of the 326 languages we cover, before an immigration officer, opposing counsel, or a print run finds the mistake first.
Last reviewed August 23, 2026 by the Prism Linguistics editorial team.
These are the error types that actually cause USCIS rejections, court challenges, and expensive reprints. Each one gets a deliberate pass.
The translation is read line by line against the original. Nothing omitted, nothing quietly added, no clause that drifted in meaning between languages.
Key terms rendered the same way every time, checked against your glossary or the standard usage of the field: legal, medical, financial, or technical.
Spelling, punctuation, and grammar in the target language, plus tone. A contract should read like a contract, not like a conversation.
Transposed figures, shifted decimals, and inconsistent name transliterations are the most common reasons USCIS questions a translated document.
Seals, stamps, tables, signatures, and marginal notes accounted for; laid-out files checked for text expansion, broken hyphenation, and truncated captions.
Every page, every footnote, every annex. Partial translations are flagged rather than silently passed, so you know exactly what was and was not covered.
Three different quality checks that often get mixed up. Here is what each one involves and when it is the right choice.
| Service | What it involves | When to choose it |
|---|---|---|
| Proofreading | A final check of the near-finished translation for grammar, spelling, punctuation, numbers, names, and formatting, with the source at hand for reference. | The translation is basically sound and you want it error-free before filing, publication, or print. |
| Editing | A sentence-by-sentence bilingual comparison of translation and source that corrects meaning, terminology, and style, not just surface errors. | The translation quality is unknown or uneven: machine output, a non-professional draft, or a vendor you have doubts about. |
| Back-translation | An independent linguist translates the text back into the original language so a reviewer can compare the two source versions for shifts in meaning. | Regulated content where the cost of a meaning error is severe: clinical trial material, informed consent forms, some legal filings. |
Four situations where an independent review earns its fee many times over.
Work produced in-house, by a freelancer, or by another vendor, reviewed against the source before you rely on it. No awkwardness: we check the text, not the person.
A bilingual editor corrects machine output until it is accurate and natural. If the draft is too weak to save, we say so before charging you to polish it.
Contracts, court exhibits, discharge summaries, and consent forms, where one shifted decimal or dropped negative carries real consequences. See our legal and healthcare sector pages.
A last read of laid-out brochures, packaging, and campaign copy before the presses run. Catching an error at proof stage costs cents; a reprint costs thousands.
Professional translation runs in three stages: Translate, Edit, Proofread. A native-speaker linguist translates. A second bilingual linguist edits, comparing every sentence with the source. A proofreader then makes the final pass over grammar, numbers, names, and layout. Our own document translation and certified translation projects include all three stages as standard, which is why they rarely need an outside check afterward.
The service on this page is the same final stage, offered on its own for translations we didn’t produce. In practice most incoming files need a blend of editing and proofreading, since quality is usually the open question. We scope that honestly at quote stage: if the draft is strong, you pay for a light check; if it needs rework, we tell you before starting, not after. The same review is available for website translation, brochure translation, and localization projects heading into a new market.
Four steps from files to a checked, signed-off translation.
Upload the source document and the translation through our quote form, or email them to info@prismlinguistics.com. Both files are needed: a proofreader cannot verify accuracy without the original.
We reply within 60 minutes during business hours with a fixed price and turnaround based on word count, language pair, and file format.
A qualified linguist in your language pair checks the translation against the source: accuracy, terminology, grammar, numbers, names, and formatting.
You receive the corrected translation, usually with changes tracked, plus a clean final version. Free revisions if the receiving institution requests a change.
Proofreading is priced per word or per hour, and it costs a fraction of a new translation because the heavy lifting is already done. As a US market guide, independent review of an existing translation typically runs $0.03 to $0.07 per word. Hourly rates, usually $40 to $75, apply to heavily formatted files, scanned or partly handwritten documents, and final layout checks where a word count would be misleading. Rare language pairs and dense technical content sit at the upper end. Your written quote confirms the exact price before any work starts.
Turnaround is quicker than translation too. A proofreader covers roughly 1,000 to 1,500 words per hour, so a short document is often back within one to two business days. Same-day review is sometimes possible for short standard documents, subject to linguist capacity. Send your deadline with the files and we will tell you plainly what is realistic, whichever answer that is.
The questions clients ask before sending a translation for review.
Send the translation and the original. We’ll review it, or tell you honestly if it needs more than a review.
Get a Free Quote Call +1 (833) 282 8883