ClawHub

Ocr Document

Security

OCR document extraction - extract text from scanned documents, photos, and images using OCR. Use when reading scanned PDFs, photographed pages, handwritten notes, or any document that needs optical character recognition.

Install

openclaw skills install ocr-document

OCR Document - Extract Text from Scanned Documents and Images

Extract text from scanned documents and images using OCR via MinerU Open API. No API key required.

Quick Start

# OCR a scanned PDF
mineru-open-api flash-extract scanned.pdf

# OCR an image of a document
mineru-open-api flash-extract page-photo.jpg

# OCR from URL (no download needed)
mineru-open-api flash-extract https://example.com/scanned.pdf

# Specify language for better accuracy
mineru-open-api flash-extract scanned.pdf --language en

# Save OCR result to file
mineru-open-api flash-extract scanned.pdf -o ./output/

Language Rule

You MUST reply to the user in the SAME language they use. This is non-negotiable.

Capabilities

  • OCR for scanned PDFs, photographed documents, images
  • Supports PDF, PNG, JPG, WebP, BMP, TIFF
  • Supports both local files and URLs directly
  • Language hint with --language (default: ch, use en for English)
  • No API key, no signup, no authentication
  • Max 10MB / 20 pages per document

When to Use

  • User asks to "OCR" a document or image
  • User has a scanned PDF that needs text extraction
  • User shares a photo of a page and wants the text
  • User mentions "scan", "handwriting", or "recognize text"

CLI Reference

Run mineru-open-api flash-extract --help for all available options.

Data Privacy

  • flash-extract uploads the document to MinerU's cloud API for processing and returns the result. No account or API key is required.
  • Documents are processed in real-time and are not stored after extraction.
  • For details, see https://mineru.net

Notes

  • Best results with clear, high-resolution scans
  • For higher precision OCR with full layout preservation, use mineru-open-api extract --ocr (requires auth via mineru-open-api auth)
  • If the CLI cannot be installed via npm/uv/go, download it from https://mineru.net/ecosystem?tab=cli
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