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MarkItDown 转换多种文件格式为 Markdown，适用于 LLM 和文本分析。支持 PDF、Office 文档、图片、音频、HTML 等，保留标题、表格、链接等结构。
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# MarkItDown\n\n[](https://pypi.org/project/markitdown/)\n\n[](https://github.com/microsoft/autogen)\n\n> [!IMPORTANT]\n> MarkItDown performs I/O with the privileges of the current process. Like open() or requests.get(), it will access resources that the process itself can access. Sanitize your inputs in untrusted environments, and call the narrowest `convert_*` function needed for your use case (e.g., `convert_stream()`, or `convert_local()`). See the [Security Considerations](#security-considerations) section of the documentation for more information.\n\nMarkItDown is a lightweight Python utility for converting various files to Markdown for use with LLMs and related text analysis pipelines. To this end, it is most comparable to [textract](https://github.com/deanmalmgren/textract), but with a focus on preserving important document structure and content as Markdown (including: headings, lists, tables, links, etc.) While the output is often reasonably presentable and human-friendly, it is meant to be consumed by text analysis tools -- and may not be the best option for high-fidelity document conversions for human consumption.\n\nMarkItDown currently supports the conversion from:\n\n- PDF\n- PowerPoint\n- Word\n- Excel\n- Images (EXIF metadata and OCR)\n- Audio (EXIF metadata and speech transcription)\n- HTML\n- Text-based formats (CSV, JSON, XML)\n- ZIP files (iterates over contents)\n- Youtube URLs\n- EPubs\n- ... and more!\n\n## Why Markdown?\n\nMarkdown is extremely close to plain text, with minimal markup or formatting, but still\nprovides a way to represent important document structure. Mainstream LLMs, such as\nOpenAI's GPT-4o, natively "_speak_" Markdown, and often incorporate Markdown into their\nresponses unprompted. This suggests that they have been trained on vast amounts of\nMarkdown-formatted text, and understand it well. As a side benefit, Markdown conventions\nare also highly token-efficient.\n\n## Prerequisites\nMarkItDown requires Python 3.10 or high