Translating a document is easy.
Knowing if it's correct is the hard part.
Most documents don't need a full human translation. But they deserve better than raw machine translation.
Upload a document. Get a verified translation back, same format, ready to send.
✓€9/1,000 words for a verified translation
✓Pay per use, no subscription
✓Built by M21Global, ISO 17100 certified since 2005
Drag the document or click to select
Word (.docx), PowerPoint (.pptx), TXT, JSON, Markdown: up to 50 MB
Documents processed in a private environment. Never used to train AI.
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Supported formats
Active languages

M21Global: Professional translation company since 2005
Translating a document is the easy part. Knowing whether the result is correct is the real challenge.
Most companies already use ChatGPT or DeepL for translation. The issue is not getting words into another language. The issue is knowing whether the result is correct before it goes out.
In practice, the process usually looks the same: someone leaves the tasks they were hired to do, copies text into a tool, spends time reformatting the document, and maybe someone else gives it a quick review, not because they're qualified, but because there's no one else who can.
The document gets sent. Nobody is sure it's actually correct. It works until a client, partner, or regulator reads it.
"I already use DeepL. Why do I need Vertio?"
DeepL is good at what it does. You get document translation with formatting preserved. If all you need is a translated file and you're comfortable trusting a single engine, it works.
No second opinion. One engine translates, one output delivered. If a sentence is mistranslated (wrong term, shifted meaning, inconsistent tone), nothing catches it. You only find out when someone who reads the language spots it. And if you had that person, you probably wouldn't need the tool.
The real cost of "free". When someone on the team pastes a document into ChatGPT, copies the result back, tries to recompose the formatting, and then asks a colleague to "have a look"... that's not free. That's 20 minutes of someone's time, on a document in a language they probably don't master. At €9/1,000 words, a 10-page report costs around €22.50. Verified automatically. No one needs to "have a look".
No quality signal. You get a file. You don't know which parts are solid and which parts are guesses. There's no confidence score, no flagged segments, no report.
Vertio adds the verification step. You get a document that's been automatically verified, not just translated. And with Plus, you know exactly which sentences need human attention.
For low-stakes internal content, free tools or DeepL Pro may be enough. For anything your company sends to clients, partners, or regulators, "probably correct" is not a process.
| ChatGPT / Free tools | DeepL Pro | Agency | Vertio | |
|---|---|---|---|---|
| Translation | ||||
| Formatting preserved | Usually | |||
| Verification | Human reviewer | Automatic verification (Normal+) | ||
| Pinpoints problem segments | Plus | |||
| Ready in minutes | 3–5 days | |||
| Subscription required | €8–57/mo | Pay per use | ||
| Human review available | Human / ISO | |||
| Privacy | May train AI | May train AI | Contractual | GDPR · Never trains AI |
| Cost per 1,000 words | €0 + team time | €0* + team time | €70–150 | €2–9 (AI) |
*DeepL Pro: unlimited words within subscription. No verification layer.
Choose how much verification you need.
Not sure? Choose Normal. It's the right option for most business documents.
- Single AI engine. No automatic verification.
- Fast and cheap. Formatting preserved.
- Delivered in 1–3 minutes
Ideal for: internal notes, rough drafts, content only your team will see
- Two AI engines translate independently and compare
- Discrepancies resolved before delivery
- Verified document, ready to share
- Formatting preserved (Word, PowerPoint)
- Delivered in 3–10 minutes
- Full self-service. No emails, no waiting
This is the step that free tools skip. You get a document that's been checked, not just translated.
Ideal for: reports, proposals, client emails, documentation shared outside your team
- AI translation as base, reviewed by professional translator
- For documents where nuance and tone matter
- Formatting preserved
- Delivered in 24–48 business hours
ISO 17100 Certification
- Full human translation + independent review
- ISO 17100 compliance certificate
- Dedicated project management + traceability
Ideal for: marketing materials, external communications, high-stakes client documents
Simple rule: Quick draft → Draft. Daily use → Normal. Know where the problems are → Plus. Important document → Human. Legal consequences → ISO 17100.
What does translating a document actually cost your team?
Compare the three ways to translate documents in your company.
Example documents
Vertio service tier
In-house (ChatGPT/DeepL)
Time
~46 min
People
2–3 people
Cost
46 min
of your team's time
Verification
No guarantee of final translation reliability
Formatting
Manual. Copy-paste loses formatting
Vertio
Time
~7 min
People
0. Full self-service
Cost
€45.00
Verification
Two AI engines translate and compare before delivery
Formatting
Preserved. Document comes out in original format
Traditional agency
Time
3–5 business days
People
Managing emails, approvals, and follow-ups
Cost
~€500.00
market average, varies by agency
Verification
Translator + human reviewer
Formatting
Preserved (usually)
With Vertio you save 39 minutes and 3–5 days of waiting per document.
Internal times based on real process observation. Agency cost: market average in Portugal. Vertio times: estimate based on engine processing.
Three steps. Minutes. Done.
Upload
Drag your file. Word, PowerPoint, or Text. Choose the target language and the verification level you need.
Vertio translates
Your document goes through the translation pipeline. What happens depends on the tier you choose: Draft runs a fast translation with no verification. Normal and above run the full verification pipeline — discrepancies are identified and resolved before you see the output.
Download
Same file, same format, same layout. Open it, send it, use it.
M21Global: Professional translation company since 2005
Vertio is M21Global's self-service platform. The same expertise, available on demand.
Have questions? We have answers.
Vertio is a self-service document translation platform powered by M21Global. Upload a file, choose a language and tier, get the translated document back in the same format. Five tiers from quick Draft to ISO 17100 certified.
DeepL Pro translates documents with formatting preserved for a monthly subscription. Vertio adds a proprietary verification layer: from Normal tier up, the document is translated and automatically verified before delivery. Plus goes further and pinpoints exactly which segments and terms need human attention. Vertio also offers human translation tiers. Pay-per-use, no subscription.
In Normal and Plus tiers, your document goes through a proprietary verification pipeline. After translation, the output is validated segment by segment — discrepancies in terminology, phrasing, and meaning are identified and resolved automatically before delivery. The result is a translation that has been verified, not just generated once.
Draft for low-stakes internal content. Normal for most business documents. Plus when you need to know exactly which parts might need human review. Human when wording matters. ISO 17100 for legal or regulatory documents.
The Plus report flags the specific segments and terms where the system detected lower confidence. Instead of reviewing the entire document, you review only the 1–2% that needs attention. Each flagged segment shows the issue type (terminology, ambiguity, inconsistency) and a recommendation.
Yes. Vertio returns the document in the original format. Supported: Word (.docx), PowerPoint (.pptx), Text (.txt), JSON, Markdown. Up to 50 MB and 20,000 words per document.
Pay-per-use. Top up your wallet (minimum €10, valid 12 months), translate when you need. Each translation debited at the price shown before you confirm. No subscription.
Documents processed in a private environment. Never used to train AI. Files deleted after processing. GDPR compliant.
You don't have to take our word for it. Upload any document and use the free preview — no account required. Compare the result with what your current tool produces. The difference isn't that our AI is smarter. It's that Vertio verifies before delivering. ChatGPT and DeepL translate once and stop. Vertio runs an automatic verification pass: discrepancies in terminology, phrasing, and meaning are identified and resolved before the file reaches you. If the preview doesn't convince you, don't pay. That's the point.
Translate your next document in minutes.
Upload a file. Choose your verification level. Get a translated document back, formatted and ready to send.
First top-up counts double. ISO 17100 certified, 20+ years, 300M+ words translated.