AI Document Translator
Translate contracts, records, research papers and books in 475 languages while preserving their layout. Natural, accurate translations that keep the meaning and tone of the original.
Translate PDF, Word, PowerPoint, Excel and EPUB files into any of 475 languages while preserving their layout. The AI translates your text in context, for natural, accurate wording that keeps the meaning of the original, and scanned pages are read with OCR. You can try it free.
Explore document translators
Keep your document’s layout
Translated text is placed back into the document, retaining its headings, tables, columns and other layout elements. Word, PowerPoint and Excel files remain editable in their original apps. Longer translations may need different line breaks, text sizes or fonts, and complex layouts can need a final review. Compare the original and translated examples to see how this works on different kinds of documents.
- Text styles and colours are retained where supported; fonts and sizes may adjust to fit
- Tables, columns, numbered lists and signature blocks keep their structure
- Images, logos, stamps and diagrams remain part of the document
- Headers, footers, footnotes and page numbers are translated in place
- Numbers, dates, codes and references are carried over unchanged
- Scans and photos: the original text is erased and the translation drawn in its place
“I'm using it to publish an open-source edition of the Corpus Aristotelicum, triple-checking against published translations. The result is seamless, no edits required — the semantics match and the original Greek rhythm is preserved. Perfect tool, highly recommended.”
Antoine Portes“Truly miraculous. I cannot believe its general accuracy — it has proved an invaluable help in the space of a few days.”
John Raffan, translator of Walter Burkert's “Greek Religion”“I am 68 years old and one of the few who still speak the Plattdeutsch of my home town. I tested Low German and I am astonished at how well it works — my congratulations.”
“The other options don't have the quality this requires — here it is vastly better. ChatGPT invents what it cannot translate; this doesn't.”
“I've been using Polytranslator as a tool in introducing myself to Middle English. The site is easy to use, and I will be back.”
Douglas Robinson, Professor of Translating and Interpreting, CUHK-Shenzhen“I rarely have a translation that causes confusion for native speakers. I always recommend this site to my students.”
“Better translations than alternative free translation sites. Stands out for its ability to translate Old English.”
“I find Polytranslator very helpful as a PhD candidate.”
Contracts, court papers and official records
Translate contracts, court papers and official records into a file you can review alongside the original. Keeping clause numbers, tables and signature blocks in their document layout makes cross-checking easier. Use the output as a reading aid or draft for a lawyer or certified translator to review; check names, dates, amounts and legal terms before relying on it.
Contracts and agreements
NDAs, purchase agreements, leases and terms of service. Numbering, cross-references and party names stay consistent from the first clause to the signature page.
Certificates and official forms
Birth, marriage and academic certificates, government forms and notarised records. The translated copy mirrors the original field for field, stamps and seals included.
Court and immigration filings
Judgments, affidavits, pleadings and supporting evidence. Preserve the document structure for review, then check page references and citations against the original.
For lab results or discharge summaries, see the medical report translator for an example, privacy information, and checks to make before using a translation.
How to translate a document
- 1
Upload your document
Drag and drop a file into the translator above, or click to choose one. PDF, DOCX, PPTX, XLSX, and EPUB files all work.
- 2
Choose the target language
Pick from 475 languages. The language your document is written in is detected automatically, so you can leave the source on auto-detect.
- 3
Translate and download
Start the translation and download the file with its document layout preserved. For important documents, check names, numbers and key terms against your original.
What can you translate?
Books & long texts
Translate books, novels and manuscripts within the upload limits. Read a chapter or work through a longer text, checking recurring names and terminology as you go.
Papers & articles
Read research papers, essays, and articles published in another language. Technical vocabulary is translated consistently, so the argument stays easy to follow.
Letters, records & archives
Family letters, old records, and historical documents — including ones written in Latin, Ancient Greek, or Old English — become readable in your language.
Work documents
Translate reports, slide decks and spreadsheets from clients or colleagues abroad. Upload the DOCX, PPTX or XLSX file directly to retain its structure.
Supported file formats
Receive a translated file that retains the source document’s structure. Layout results depend on the file and the language pair.
PDF translator
Text-based and scanned PDFs. Scanned pages are read with OCR and the translation is drawn onto the page in place.
Word document translator
Microsoft Word documents, from one-page letters to full manuscripts. Styles, tables, footnotes, headers and footers are preserved.
PowerPoint translator
PowerPoint decks. Text boxes, tables and speaker notes can be translated, with text size and line breaks adjusted to fit the slides.
Excel translator
Excel workbooks. Text cells are translated; numbers, formulas, dates and identifiers are left untouched.
EPUB translator
EPUB ebooks. A whole book in one upload, chapter files, styles and images intact, right-to-left languages handled.
Translate documents to popular languages
Upload a document and translate it into any of the world's most-spoken languages.
Translate documents other tools can't
Most document translators stop at mainstream languages. Polytranslator covers 475, including ancient and historical ones — Latin, Ancient Greek, Old English, Coptic, Aramaic, and more. Upload a scanned parish record, a classical text, or a page of medieval Latin and read it in your own language.
More ways to translate
Translating documents in bulk or from your app? Use the Document Translation API
Document translation FAQ
- How do I translate a whole document?
- Upload your file — PDF, DOCX, PPTX, XLSX or EPUB — pick the target language, and start the translation. The AI translates the document while preserving its layout. Download the translated file and compare it with the original.
- Can it translate an entire book?
- Yes, if the file fits the upload and text limits. Free accepts files up to 20MB; Pro and Scholar accept up to 50MB. Free and Pro allow 100,000 extracted characters per document; Scholar allows 1,000,000. Choose EPUB, PDF or a supported document format. For longer works, check recurring names and terms in the finished translation.
- Does the translation keep my document's formatting?
- The translator produces a translated PDF, Word, PowerPoint, Excel or EPUB file that aims to preserve tables, columns, headers and other layout elements. Word, PowerPoint and Excel files stay editable in their original apps. Text length and fonts can change, so review the result against the original.
- What languages can I translate documents into?
- 475 languages and dialects — all the major world languages plus ancient and historical ones like Latin, Ancient Greek, Old English, Coptic, and Aramaic that mainstream document translators don't support.
- How accurate is the translation?
- Polytranslator uses state-of-the-art AI models tuned for each language, so translations read naturally and keep the meaning and tone of the original instead of following it word for word. Advanced mode uses a stronger model for harder material such as legal wording, technical terms and historical texts. AI can still make mistakes, especially with unclear scans, handwriting, names and numbers, so check important documents against the original. When an official body requires a certified translation, use a certified translator.
- Is my document stored or shared?
- Your file is processed to generate a translation and is not published publicly. Uploaded files and translated document files are retained indefinitely; there is currently no automatic file-deletion period.