Why PDFs break LLMs — and what clean Markdown fixes
A PDF that looks perfect to a human often falls apart the moment a model reads it. Here's what goes wrong, and why converting to clean Markdown first makes downstream AI far more reliable.
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Blog của markitdown.ai là tập hợp những ghi chú thực tế về việc biến PDF, tệp Office, bản scan và trang web thành Markdown cho model, pipeline RAG và agent — những kiểu hỏng chúng tôi gặp và cách chuyển đổi khắc phục chúng.
A PDF that looks perfect to a human often falls apart the moment a model reads it. Here's what goes wrong, and why converting to clean Markdown first makes downstream AI far more reliable.
Retrieval quality is decided long before the vector database. This is a pre-processing checklist for turning messy source documents into clean, chunk-ready text.
Plain text throws away the structure a model could have used. Markdown keeps it, at almost no token cost — and that changes how reliably an LLM can reason over your content.
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