Document Format Preservation During Translation

via “layout-preserving pdf translation with structural reconstruction”

[EMNLP 2025 Demo] PDF scientific paper translation with preserved formats - 基于 AI 完整保留排版的 PDF 文档全文双语翻译，支持 Google/DeepL/Ollama/OpenAI 等服务，提供 CLI/GUI/MCP/Docker/Zotero

Unique: Uses font pattern matching in PDFConverterEx to detect mathematical formulas and preserve them as untranslatable elements, combined with BabelDOC backend for intelligent content classification and PyMuPDF-based reconstruction that maintains precise spatial positioning and multi-column layouts — most competitors either lose formatting or fail on math-heavy documents

Outperforms generic PDF translators (Google Translate, Microsoft Translator) by preserving mathematical formulas and complex layouts; outperforms academic-focused tools by supporting 24+ translation services and local LLMs instead of single-provider lock-in