MinerU zero-setup document extraction — convert PDFs, images, Word, and PowerPoint to Markdown instantly. No login, no token, no configuration. Just run and get results

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MinerU fast extract — zero-setup, instant document extraction. Convert PDFs, images, Word (DOCX), and PowerPoint (PPTX) to Markdown with no login, no token, no API key, no configuration required. Just install and run. Powered by the MinerU flash-extract engine with built-in OCR, table recognition, and formula extraction (LaTeX). Handles scanned documents, photos of text, academic papers, contracts, invoices, resumes, and slides out of the box. Use this skill when you need to: quickly extract text from a PDF, convert a document to Markdown without signing up, read a scanned PDF, turn a Word file into Markdown, parse a PowerPoint presentation, OCR an image, extract content from a PDF file, or get a fast document conversion with no setup. Supports 80+ languages including Chinese, English, Japanese, Korean, Arabic, Hindi, French, German, Spanish, Russian, and many more. Works with local files and remote URLs. Ideal for developers, researchers, students, and anyone who wants instant document parsing without accounts or API tokens. Use as a Claude Code skill, agent tool, or standalone CLI. PDF提取、文档转Markdown、免登录PDF转换、快速文档提取、扫描件OCR、图片转文字、Word转Markdown、PPT转Markdown、PDF解析、零配置文档转换。无需注册、无需Token，安装即用，一键提取PDF、Word、PPT、图片中的文字内容。

Install

openclaw skills install mineru-fast-extract

Fast Document Extraction with mineru-open-api

Zero-setup, instant document parsing — no login, no token, no configuration needed. Supports tables and formulas (LaTeX).

Installation

npm install -g mineru-open-api

Or via Go (macOS/Linux):

go install github.com/opendatalab/MinerU-Ecosystem/cli/mineru-open-api@latest

Verify installation

mineru-open-api version

Quick start

mineru-open-api flash-extract report.pdf                     # PDF → Markdown (instant!)
mineru-open-api flash-extract report.pdf -o ./out/           # Save to file
mineru-open-api flash-extract resume.docx                    # Word → Markdown
mineru-open-api flash-extract slides.pptx                    # PowerPoint → Markdown
mineru-open-api flash-extract photo.png                      # Image → Markdown (OCR)
mineru-open-api flash-extract https://example.com/doc.pdf    # URL → Markdown

Supported input formats

Format	Supported
PDF (`.pdf`)	Yes
Images (`.png`, `.jpg`, `.jpeg`, `.jp2`, `.webp`, `.gif`, `.bmp`)	Yes
Word (`.docx`)	Yes
PowerPoint (`.pptx`)	Yes
URLs (remote files)	Yes

Command: flash-extract

mineru-open-api flash-extract <file-or-url> [flags]

Flags

Flag	Short	Default	Description
`--output`	`-o`	(stdout)	Output path (file or directory)
`--language`		`ch`	Document language
`--pages`		(all)	Page range, e.g. `1-10`
`--timeout`		`900`	Timeout in seconds

Supported `--language` values

Values are organized by script/language family — each value covers all languages in its group.

Standalone language packs

Value	Included languages	说明
`ch`	Chinese, English, Chinese Traditional	中英文（默认值）
`ch_server`	Chinese, English, Chinese Traditional, Japanese	繁体、手写体
`en`	English	纯英文
`japan`	Chinese, English, Chinese Traditional, Japanese	日文为主
`korean`	Korean, English	韩文
`chinese_cht`	Chinese, English, Chinese Traditional, Japanese	繁体中文为主
`ta`	Tamil, English	泰米尔文
`te`	Telugu, English	泰卢固文
`ka`	Kannada	卡纳达文
`el`	Greek, English	希腊文
`th`	Thai, English	泰文

Language family packs

Value	Script/Family	Included languages
`latin`	Latin script (拉丁语系)	French, German, Afrikaans, Italian, Spanish, Bosnian, Portuguese, Czech, Welsh, Danish, Estonian, Irish, Croatian, Uzbek, Hungarian, Serbian (Latin), Indonesian, Occitan, Icelandic, Lithuanian, Maori, Malay, Dutch, Norwegian, Polish, Slovak, Slovenian, Albanian, Swedish, Swahili, Tagalog, Turkish, Latin, Azerbaijani, Kurdish, Latvian, Maltese, Pali, Romanian, Vietnamese, Finnish, Basque, Galician, Luxembourgish, Romansh, Catalan, Quechua
`arabic`	Arabic script (阿拉伯语系)	Arabic, Persian, Uyghur, Urdu, Pashto, Kurdish, Sindhi, Balochi, English
`cyrillic`	Cyrillic script (西里尔语系)	Russian, Belarusian, Ukrainian, Serbian (Cyrillic), Bulgarian, Mongolian, Abkhazian, Adyghe, Kabardian, Avar, Dargin, Ingush, Chechen, Lak, Lezgin, Tabasaran, Kazakh, Kyrgyz, Tajik, Macedonian, Tatar, Chuvash, Bashkir, Malian, Moldovan, Udmurt, Komi, Ossetian, Buryat, Kalmyk, Tuvan, Sakha, Karakalpak, English
`east_slavic`	East Slavic (东斯拉夫语系)	Russian, Belarusian, Ukrainian, English
`devanagari`	Devanagari script (天城文语系)	Hindi, Marathi, Nepali, Bihari, Maithili, Angika, Bhojpuri, Magahi, Santali, Newari, Konkani, Sanskrit, Haryanvi, English

Examples

mineru-open-api flash-extract report.pdf
mineru-open-api flash-extract report.pdf -o ./out/
mineru-open-api flash-extract report.pdf --language en
mineru-open-api flash-extract report.pdf --language latin
mineru-open-api flash-extract report.pdf --pages "1-5"
mineru-open-api flash-extract contract.docx -o ./out/
mineru-open-api flash-extract presentation.pptx -o ./out/
mineru-open-api flash-extract scan.jpg --language ch

Output behavior

No -o flag: result goes to stdout; status/progress messages go to stderr
With -o flag: result saved to file/directory; progress messages on stderr
Markdown output includes extracted images saved alongside the .md file
Tables are converted to Markdown tables
Formulas are converted to LaTeX format (inline $...$ and block $$...$$)

Agent guidelines

When using this skill on behalf of the user:

Always use flash-extract for any input — whether it's a local file or a URL (e.g. https://cdn-mineru.openxlab.org.cn/demo/example.pdf). Do NOT assume a URL means "web page". flash-extract handles URLs to document files directly.
Quote file paths that contain spaces or special characters with double quotes. Example: mineru-open-api flash-extract "report 01.pdf".
Don't run commands blindly on errors — explain the exit code and troubleshooting steps instead of re-running the command.
Installation questions ("mineru 怎么安装") should be answered with the install instructions above.

Default output directory

When the user does NOT specify -o, generate a default output directory:

~/MinerU-Skill/<name>_<hash>/

<name>: derived from the source, then sanitized (replace spaces and shell-unsafe characters with _, collapse consecutive _).
- For URLs: last path segment (e.g. https://arxiv.org/pdf/2509.22186 → 2509.22186)
- For local files: filename without extension (e.g. report.pdf → report)
<hash>: first 6 characters of MD5 hash of the full original source.

echo -n "source" | md5sum | cut -c1-6   # Linux
echo -n "source" | md5 | cut -c1-6      # macOS

When the user specifies -o: use the user's path as-is.

Skill upgrade = CLI upgrade

When the user asks to upgrade this skill, re-install the CLI first:

npm install -g mineru-open-api@latest

Exit codes

Code	Meaning	Recovery
0	Success	—
1	General API or unknown error	Check network; retry; use `--verbose`
2	Invalid parameters / usage error	Check command syntax and flag values
4	File too large or page limit exceeded	Try a smaller file or fewer pages
5	Extraction failed	Document may be corrupted or unsupported
6	Timeout	Increase with `--timeout`

Troubleshooting

Timeout on large files: Increase with --timeout 1600
Extraction quality is poor: Try specifying --language to match the document language
HTTP 429: Rate limit hit. Wait a few minutes and retry.