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Turn arXiv Papers into Multilingual Masterpieces

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• 📖 Introduction • 🛠️ Installation Guide • ⚙️ Configuration Guide • 📚 Usage • 🖼️ Translation Examples

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End-to-end translation from arXiv paper ID to translated PDF. LaTeXTrans have the following Features :

🌟 Preserve the integrity of formulas, layout, and cross-references
🌟 Ensure consistency in terminology translation
🌟 Support end-to-end conversion from original TeX source (automatically downloaded based on the arXiv paper id provided) to translated PDF

With LaTeXTrans, researchers and students can obtain higher-quality arXiv paper translations without worrying about formatting confusion or missing content, thus reading and understanding arXiv papers more efficiently.

📖 Introduction

LaTeXTrans is a structured LaTeX document translation system based on multi-agent collaboration. It directly translates LaTeX code and generates translated PDFs with high fidelity to the original layout. Unlike traditional document translation methods (e.g., PDF translation), which often break formulas and formatting, LaTeXTrans leverages LLM to translate preprocessed LaTeX sources and employs a workflow composed of six agents—Parser, Translator, Validator, Summarizer, Terminology Extractor, and Generator to achieve the features. The figure below illustrates the system architecture of LaTeXTrans.

🛠️ Installation Guide

1. Clone Repository

git clone https://github.com/PolarisZZM/LaTeXTrans.git
cd LaTeXTrans
pip install -e .

(Optional) Use Conda Environment

conda create -n latextrans python=3.10 -y
conda activate latextrans
git clone https://github.com/PolarisZZM/LaTeXTrans.git
cd LaTeXTrans
pip install -e .

2. Install MikTex(Recommended) or TeXLive

If you need to compile LaTeX files (e.g., generate PDF output), install MikTex or TeXLive !

[!IMPORTANT] For MikTex, installation please be sure to select "install on the fly", in addition, you need to install additional Strawberry Perl support compilation.

⚙️ Configuration Guide

Local Configuration

Please edit the configuration file before use:

config/default.toml

Set the language model's API key and base URL in default.toml :

model = " " # model name (For example, deepseek-chat)
api_key = " " # your_api_key_here
base_url = " " # base url of the API (For example, https://api.deepseek.com/v1/chat/completions)

[!NOTE] The following example shows the recommended base_url for different models:

📚 Usage

Translation via ArXiv ID

Simply provide an arXiv paper ID to complete translation:

latextrans --arxiv ${xxxx}
# For example, 
# latextrans --arxiv 2508.18791

Versioned arXiv IDs are also supported, so you can target a specific revision:

latextrans --arxiv 2508.18791v2

This command will:

Download the LaTeX source code from arXiv and extract it
Execute a workflow consisting of parsing, translation, refactoring and compilation
Save the translated LaTeX project file of the paper and the PDF of the compiled translation in the outputs folder

Batch Translation via ArXiv IDs

You can translate multiple arXiv papers in one run (comma-separated):

latextrans --arxiv ${xxxx}, ${xxxx}
# For example,
# latextrans --arxiv 2508.18791v2, 2407.01648

Translation via Local Project

You can also pass a local compressed source package directly:

latextrans --project D:\\path\\to\\paper_source.tar.gz

Or pass a local extracted project directory:

latextrans --project D:\\path\\to\\paper_project_dir

When you provide --arxiv or --project, LaTeXTrans only processes those explicit inputs. Existing folders under tex source are ignored in this mode.

To process every existing project under tex source, run:

latextrans --all-existing

GUI via Streamlit

If you want a browser-based GUI with live workflow progress, logs, and runtime configuration, launch:

latextrans-gui

Or run Streamlit directly:

streamlit run src/gui/streamlit_app.py

[!NOTE] Although LaTeXTrans supports translation from any language to any language, the current version has only made relatively complete compilation adaptations for translation from English to Chinese. When translating to other languages, the final output pdf may contain errors. We welcome you to raise an issue to describe the problem you have encountered, and we will solve it case by case.

🖼️ Translation Examples

The following are three real translation examples generated by LaTeXTrans, with the original text on the left and translation results on the right.

📄 Case 1 ( en->ch ) :

<table> <tr> <td align="center"><b>Original</b></td> <td align="center"><b>Translation</b></td> </tr> <tr> <td><img src="examples/case1src.png" width="100%"></td> <td><img src="examples/case1ch.png" width="100%"></td> </tr> </table>

📄 Case 2 ( en->ch ):

<table> <tr> <td align="center"><b>Original</b></td> <td align="center"><b>Translation</b></td> </tr> <tr> <td><img src="examples/case3src.png" width="100%"></td> <td><img src="examples/case3ch.png" width="100%"></td> </tr> </table>

📄 Case 3 ( en->jp ):

<table> <tr> <td align="center"><b>Original</b></td> <td align="center"><b>Translation</b></td> </tr> <tr> <td><img src="examples\case-en.png" width="100%"></td> <td><img src="examples\case-jp.png" width="100%"></td> </tr> </table>

📄 Case 4 ( en->jp ):

<table> <tr> <td align="center"><b>Original</b></td> <td align="center"><b>Translation</b></td> </tr> <tr> <td><img src="examples\case5a-1-en.png" width="100%"></td> <td><img src="examples\case5b-1-jp.png" width="100%"></td> </tr> </table>

📂 See examples/ folder for more cases, including complete translation PDFs for each case.

Acknowledgments

We would like to thank all the students who contributed to this project： Haosong Xv, Yiyang Liu, Heng Zhang, Xiaoru Huang, Yihang Zhang, Ce Liu, Shuochang Zhang, Jihang Yv, Boyang Liu.

Citation

@article{zhu2025latextrans,
  title={LaTeXTrans: Structured LaTeX Translation with Multi-Agent Coordination},
  author={Zhu, Ziming and Wang, Chenglong and Xing, Shunjie and Huo, Yifu and Tian, Fengning and Du, Quan and Yang, Di and Zhang, Chunliang and Xiao, Tong and Zhu, Jingbo},
  journal={arXiv preprint arXiv:2508.18791},
  year={2025}
}

LaTeXTrans

Install / Use

README