不上传就能总结 PDF：本地文档 AI 是怎么工作的
六十页的论文、两百页的合同，在自己的机器上读完要点。文本抽取、8000 字符分块与 map-reduce 总结如何配合工作，以及为什么扫描版 PDF 会返回空内容、该怎么处理。
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The Feyard Blog
How browser-based AI actually works, and how to get real work done with it — privately, for free, without uploading a single file. Looking for a finished job instead of an explanation? Start with the end-to-end workflows.
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