沉浸式翻译团队新品：BabelDOC PDF，无损翻译 PDF，免费用户可用

Core Viewpoint - BabelDOC has developed a PDF translation tool that effectively addresses common issues in machine translation, such as formatting errors and layout inconsistencies, allowing for precise PDF output. Group 1: Product Features - BabelDOC achieved a top-three ranking in the GitHub Trending list for all development languages shortly after its release [2] - The tool supports multiple languages, enabling translations from Latin-based languages to Simplified Chinese, Traditional Chinese, Japanese, and Korean, as well as mutual translations among Chinese, Japanese, and Korean [2] - Free users can process up to 1,000 pages per month, while Pro users can process up to 10,000 pages and access advanced translation models [3] Group 2: Technical Implementation - BabelDOC can extract and translate embedded elements in PDFs, such as charts, footnotes, and formulas, ensuring pixel-level layout alignment with the original document [7] - The tool utilizes AI layout recognition technology to identify text layout, paragraph structure, and complex formatting, which is crucial for maintaining the integrity of professional documents [7][9] - After recognizing the layout, the extracted text is translated using a large language model, and the translated text is matched with the original formatting to ensure consistency [8][9] Group 3: Understanding PDF Complexity - PDF (Portable Document Format) was invented by John Warnock in the early 1990s to ensure consistent document display across different devices [13] - PDF documents have unique advantages, such as strong cross-platform compatibility and high-quality printing, but they are less editable compared to DOCX formats [14] - The structure of a PDF is complex, resembling a tree with various components, including a file header, page tree, cross-reference table, and content flow, which complicates the translation process [16][19]