PDF to Markdown - Extract Text, Tables, Formulas from PDF

PDF to Markdown converter - extract text, tables and formulas from PDF files to clean Markdown. Use when converting PDF documents, extracting PDF content, parsing PDF text, or summarizing PDF reports.

Convert PDF files to clean Markdown using MinerU Open API. No API key required.

Quick Start

# Convert a local PDF to Markdown
mineru-open-api flash-extract report.pdf

# Convert a PDF from URL (no download needed)
mineru-open-api flash-extract https://cdn-mineru.openxlab.org.cn/demo/example.pdf

# Save to file
mineru-open-api flash-extract report.pdf -o ./output/

# Convert specific pages
mineru-open-api flash-extract report.pdf --pages 1-10

Language Rule

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

Capabilities

• Extracts text, tables, and formulas from PDF
• Supports both local files and URLs directly
• Page range selection with --pages
• 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 "read", "extract", "convert", or "parse" a PDF
• User shares a PDF file or PDF link and asks for its content
• User wants to summarize or analyze a PDF document
• User needs PDF content in Markdown format

CLI Reference

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

Data Flow

flash-extract sends the document to the MinerU API (mineru.net) for processing and returns Markdown. This is a stateless API call — no account, no persistent storage. MinerU is an open-source project by OpenDataLab (Shanghai AI Lab): https://github.com/opendatalab/MinerU

Notes

• Output is Markdown only; images/tables/formulas may be replaced with placeholders
• For larger files (up to 200MB/600 pages) or precision extraction with full assets, use mineru-open-api extract (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