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Document translation that holds together
DOCX, PDF, Markdown — uploaded, parsed into blocks, translated with the rest of the document for context. Page 1 reads like page 300; the headings stay headings, the lists stay lists, the formatting comes back where it started.
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Document translation is the deepest end of AI translation — and the place generic tools break first. A DOCX with tables, footnotes, and a 200-page running header isn’t one sentence repeated; it’s a structured artifact where formatting carries meaning. A PDF research paper has citation markers that need to survive the round trip. A Markdown file from a documentation site has code blocks that should never be translated. Transept treats every document as structured content from the moment it’s uploaded — parsing it into blocks that map back to their original positions on export — so the file that comes out reads like the file that went in, only in another language.
How does a file become a finished translation?
Drop the file in, pick your language pair, and pick the mode. Everything else — context, glossary, styleguide, review — happens inside the editor instead of across five tabs and a chat thread.
Upload or paste
DOCX, PDF, Markdown, TXT. Or paste raw text. Or import directly from Notion or Google Drive. The file becomes blocks that map back to their original positions on export.
Translate with document context
Each block is translated with awareness of the surrounding document — the chapter, the heading hierarchy, the recurring terms. Long-document drift, the thing DeepL and ChatGPT lose at page 50, doesn’t happen here.
Edit at the sentence
Click any sentence to see alternatives, regenerate with a direction, or rewrite by hand. Your edits feed back into the styleguide so the rest of the document picks up the change.
Export back to where you started
DOCX out for clients, Markdown for engineers, Notion or Google Docs for content workflows. The export keeps the formatting that came in.
What is document translation built for?
Client deliverables
Freelance translators and agencies handing in DOCX files. Glossary per client, styleguide per project, QA before the email goes out.
Knowledge bases
Help centers, product docs, and policy documents where terminology consistency across the whole library is the entire point.
Long-form content
Books, reports, white papers, research — the work where the voice has to survive the trip into another language.
10 languages, one weekend
We translated Transept itself into ten languages over three days, running our own pages through the editor, glossary, and memory on this site. If you are reading this in German or Ukrainian, it came through the same workflow you are looking at.
Field notes from the weekend— Don’t take our word for it —
The editor, in miniature
A working slice of the real thing — Literess, glossary, styleguide, workflows, and the translation memory are all live. Click around.
Here to help you translate
A key turned in the lock and the door swung open.
У замку повернувся ключ, і двері розчахнулися.
The knock came just before midnight.
Стукіт пролунав перед самою північчю.
FAQ
- We benchmark it, on real documents, through the exact pipeline you use — same prompts, same glossary and styleguide settings — and read the outputs side by side. The result that shaped the mode picker: no single model wins everywhere. The model that writes the most idiomatic English from a Russian source is *not* the one that best preserves that source’s compound nouns and second-person address when the target is Ukrainian. Quality is directional, so you pick the mode per document rather than us picking one for you.
- Upload DOCX, PDF, Markdown, or TXT. Or import from Notion or Google Drive. Or paste raw text. Export back to DOCX, Markdown, Notion, or Google Docs.
- Yes — headings stay headings, lists stay lists, bold and italic stay where they were. We parse the file into structured blocks rather than treating it as a wall of text, so the export comes back with the same shape.
- There is no hard limit. The Free plan covers 1,500 words per month — enough for a short article. Starter at €29/month covers 100,000 words, which is roughly a 330-page book.
- Yes — and batch translation handles the matrix of files × languages in one queue. Glossary and styleguide apply across all targets so the terminology stays put.
- A chat window will translate text from a DOCX, but you lose the formatting on the way out and have to rebuild headings, lists, tables, and bold/italic by hand. Transept preserves the structure end to end — the DOCX you export has the same headings, the same tables, the same formatting, in the new language.
- Transept handles searchable PDFs natively. For scanned PDFs (image-only), run them through OCR first — we recommend Adobe Acrobat or a free option like OCRmyPDF — then upload the resulting PDF. We’re building native OCR into the pipeline; for now the extra step is required.
- Yes — batch translation handles the matrix of one document × many target languages in one queue. Glossary and styleguide apply across all targets so the terminology stays consistent.
- Track changes are accepted before translation; the resulting clean text is what gets translated. Comments in the source are not carried into the translated export by default — they live in the original. If you need them as part of the translated artifact, ask in support and we can wire it.
- A 480-page reference manual, translated EN→DE with a 60-term glossary, in Pro mode. Total run time: about 35 minutes. The translator who delivered it said the glossary enforcement caught three terms his old workflow missed on a previous edition.
Keep reading around this capability
- FeatureA glossary the AI actually follows→Character names, product terms, branded phrases, client-specific vocabulary. Build a glossary once — manually, by upload, or seeded from a…
- FeatureA styleguide that steers every regeneration→Tone, register, rules, formatting conventions. Build a styleguide manually or have Transept generate one from a sample page of finished…
- Use caseTranslate the next client document→Per-client glossaries that travel across projects. Per-client styleguides that hold tone. Sentence-level review for the lines that matter.…
- Use caseTranslate policy conservatively→Legal and policy translation is the opposite of creative. Preserve terms exactly. Don’t paraphrase. Flag uncertain clauses for human…
Drop a 50-page document in and have it back, ready to deliver, before lunch
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