MinerU
An open-source document parsing tool that supports conversion of PDFs to Markdown and extraction of structured data, suitable for RAG pipelines.
Timeline (last 90 days)
MinerU is an ML pipeline with OCR support and excels at scanned documents and Chinese, but is heavy and uses a custom MinerU license.
If the PDF has a text layer, a layout-aware rule-based approach built on pdfminer.six/pdfplumber is lightweight, highly deterministic and low-cost to run; if it is a scanned document or a highly visual document, an OCR or ML pipeline (Docling, Marker, MinerU) is needed, at the cost of compute overhead.
Open-source tools such as Marker and MinerU focus on high-fidelity conversion of PDFs to Markdown format.
All Facts (4)
MinerU由OpenDataLab团队开发，专注于高精度PDF解析
85%UnverifiedMinerU is an ML pipeline with OCR support and excels at scanned documents and Chinese, but is heavy and uses a custom MinerU license.
50%UnverifiedIf the PDF has a text layer, a layout-aware rule-based approach built on pdfminer.six/pdfplumber is lightweight, highly deterministic and low-cost to run; if it is a scanned document or a highly visual document, an OCR or ML pipeline (Docling, Marker, MinerU) is needed, at the cost of compute overhead.
50%UnverifiedOpen-source tools such as Marker and MinerU focus on high-fidelity conversion of PDFs to Markdown format.
50%