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#

bash

# 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