@heynavtoor: Rongxin Ouyang solved the one problem every researcher outside the English-speaking world has been silently suffering f…

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pdf-translation scientific-papers open-source mit-license academic-tool nlp emnlp-2025

Summary

PDFMathTranslate is an open-source tool that translates scientific PDFs while preserving math formulas, charts, tables, and layout, accepted at EMNLP 2025 and freely available under MIT license.

Rongxin Ouyang solved the one problem every researcher outside the English-speaking world has been silently suffering from. It's called PDFMathTranslate. It translates entire scientific papers while keeping every math formula, every chart, every table, and every layout element perfectly intact. No copy-pasting into Google Translate. No losing your equations. No reformatting 47 pages by hand. Think of it as Google Translate meets LaTeX but it actually works on real PDFs. Here's what this thing does: → Drop in any PDF. Choose your language. Hit translate. → Math formulas, charts, tables, footnotes. All preserved. → Bilingual PDF output. Original and translation side by side. → Google Translate, DeepL, OpenAI, Ollama. Your choice. → Run locally. Your papers never leave your machine. → GUI, CLI, Docker, Zotero plugin, MCP server. Here's the wildest part: Most PDF translators destroy the layout. Formulas become garbled text. Tables lose their structure. Charts disappear. You spend more time fixing the translation than reading it. PDFMathTranslate uses AI layout detection to understand where every element sits on the page, translates only the text, and reconstructs the entire document with the original formatting intact. This was accepted at EMNLP 2025, one of the top NLP conferences in the world. This is not a side project. This is peer-reviewed research turned into free software. 222,000+ downloads. 49,000+ Docker pulls. Topped GitHub's global trending for over a week. The researchers who built this are from NUS Singapore and Tsinghua University. They open sourced it because language barriers should not stop science. Professional PDF translation services charge $0.10 to $0.25 per word. A 30-page research paper has roughly 10,000 words. That is $1,000 to $2,500 per paper. PDFMathTranslate does it in minutes. For $0. This is the tool every non-English-speaking researcher has been waiting 20 years for. It runs on your laptop. One command to install. 100% Open Source. MIT License.
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Cached at: 06/22/26, 05:49 PM

Rongxin Ouyang solved the one problem every researcher outside the English-speaking world has been silently suffering from.

It’s called PDFMathTranslate. It translates entire scientific papers while keeping every math formula, every chart, every table, and every layout element perfectly intact.

No copy-pasting into Google Translate. No losing your equations. No reformatting 47 pages by hand.

Think of it as Google Translate meets LaTeX but it actually works on real PDFs.

Here’s what this thing does:

→ Drop in any PDF. Choose your language. Hit translate. → Math formulas, charts, tables, footnotes. All preserved. → Bilingual PDF output. Original and translation side by side. → Google Translate, DeepL, OpenAI, Ollama. Your choice. → Run locally. Your papers never leave your machine. → GUI, CLI, Docker, Zotero plugin, MCP server.

Here’s the wildest part:

Most PDF translators destroy the layout. Formulas become garbled text. Tables lose their structure. Charts disappear. You spend more time fixing the translation than reading it.

PDFMathTranslate uses AI layout detection to understand where every element sits on the page, translates only the text, and reconstructs the entire document with the original formatting intact.

This was accepted at EMNLP 2025, one of the top NLP conferences in the world. This is not a side project. This is peer-reviewed research turned into free software.

222,000+ downloads. 49,000+ Docker pulls. Topped GitHub’s global trending for over a week.

The researchers who built this are from NUS Singapore and Tsinghua University. They open sourced it because language barriers should not stop science.

Professional PDF translation services charge $0.10 to $0.25 per word. A 30-page research paper has roughly 10,000 words. That is $1,000 to $2,500 per paper.

PDFMathTranslate does it in minutes. For $0.

This is the tool every non-English-speaking researcher has been waiting 20 years for.

It runs on your laptop. One command to install.

100% Open Source. MIT License.

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Recommend an open-source real-time translation tool, CopyTranslator. It supports cross-platform, automatically handles line-break garbled text from PDF copying, enabling copy-to-translate and boosting foreign literature reading efficiency.