The best document translators in 2026

Maxim Enis · co-creator of Polytranslator · author of From LLM to NMT (125+ citations)Updated August 30, 2026

A folder with different document types — report, slides, spreadsheet, book, manuscript

Translating a whole document is a different problem from translating a sentence: names and terminology must stay consistent across hundreds of pages, formats matter, and half the world's interesting documents are scans. Here's how the real options compare in 2026.

Latin→EnglishFrom a scanned 1834 parish register

Anno Domini 1834 die 12 Februarii baptizatus est Josephus, filius legitimus Antonii Rödling et Mariae uxoris eius

In the year of our Lord 1834, on the 12th day of February, Joseph was baptized, the legitimate son of Antonius Rödling and Maria, his wife.

Unedited Polytranslator output. Try it yourself.

Polytranslator

Formats: PDF, DOCX, PPTX, XLSX, EPUB, and photographed pages

Layout: Your choice: clean text, or the same file back with the layout preserved (incl. scans and photos)

Languages: 474 — the only option for ancient and rare languages

Accuracy: Advanced tier: the most accurate engine on the market

Scans & handwriting: Yes — photograph any page, including manuscripts

Terminology consistency: Whole-document, names and terms stay stable

Free tier: Yes (20MB, daily limits)

Google Translate

Formats: PDF, DOCX, PPTX, XLSX

Layout: Layout-preserving, variable quality

Languages: ~250

Accuracy: Good for everyday documents

Scans & handwriting: Limited

Terminology consistency: Good

Free tier: Yes (10MB)

DeepL

Formats: PDF, DOCX, PPTX

Layout: Layout-preserving DOCX/PDF, ~35 languages

Languages: ~35

Accuracy: Excellent on European languages

Scans & handwriting: No

Terminology consistency: Excellent

Free tier: Limited

AI chatbots

Formats: Paste text, or upload with limits

Layout: Text only

Languages: Major languages

Accuracy: Varies; invents words on rare languages

Scans & handwriting: Page-by-page with vision models

Terminology consistency: Degrades past ~50 pages

Free tier: Chat limits

	Polytranslator	Google Translate	DeepL	AI chatbots
Formats	PDF, DOCX, PPTX, XLSX, EPUB, and photographed pages	PDF, DOCX, PPTX, XLSX	PDF, DOCX, PPTX	Paste text, or upload with limits
Layout	Your choice: clean text, or the same file back with the layout preserved (incl. scans and photos)	Layout-preserving, variable quality	Layout-preserving DOCX/PDF, ~35 languages	Text only
Languages	474 — the only option for ancient and rare languages	~250	~35	Major languages
Accuracy	Advanced tier: the most accurate engine on the market	Good for everyday documents	Excellent on European languages	Varies; invents words on rare languages
Scans & handwriting	Yes — photograph any page, including manuscripts	Limited	No	Page-by-page with vision models
Terminology consistency	Whole-document, names and terms stay stable	Good	Excellent	Degrades past ~50 pages
Free tier	Yes (20MB, daily limits)	Yes (10MB)	Limited	Chat limits

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Word, PowerPoint, Excel, EPUB, PDF, or a photo of the page — free tier included.

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The short version: if you need the translated file back looking like the original — a contract, a certificate, a slide deck, a spreadsheet — choose Polytranslator and pick “keep formatting”: the same PDF, Word, PowerPoint, Excel or EPUB comes back translated in place, scans and photographed pages included, in 474 languages. DeepL does this well too for its ~35 mostly European languages. For rare and ancient languages, scanned pages, or when you only need to read the content, Polytranslator is the only practical option and also offers a clean text-only output.