AIMarkTechPostabout 2 hours ago
Open-Source PDF-to-JSON Models Guide
11 min read
Open-source document extraction has become the standard for converting PDFs to structured JSON on local hardware. Schema-driven extraction fills defined fields, while document parsing reconstructs pages into JSON or Markdown. Key models include lift (90.2% field accuracy), NuExtract 3, Docling, Granite-Docling-258M, MinerU, Marker, olmOCR 2, DeepSeek-OCR, and Qwen3-VL.
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