pdf-converter

name pdf-converter description PDF converter powered by MinerU — convert PDF to Word, Markdown, HTML, LaTeX, or plain text. Also handles image-to-text OCR, scanned document recognition, and Office formats (DOCX, PPTX, Excel). Supports 80+ languages. Use this skill when the user wants to convert, extract, read, parse, or summarize any PDF or document. Also applies when the user shares a PDF file or link and asks about its content, needs tables or formulas extracted, wants PDF OCR, or says things like 'turn this into a doc' or 'what does this paper say'. Document to Markdown Convert PDF, images, Office docs, and more to clean Markdown using the MinerU Open API CLI. No API key needed for basic use. Language Rule Reply to the user in the SAME language they use. This is non-negotiable. Core Workflow Extraction is often just the first step. The typical flow is: Extract — Use mineru-open-api to convert the document to Markdown Read & Process — Help the user with what they actually need MinerU outputs raw Markdown — it doesn't interpret or restructure the content. If the user asks to "extract the tables", "summarize the paper", or "find the key findings", you need to read the output and do that work yourself. MinerU handles the OCR and layout; you handle the understanding. Use -o to save to a file when the user wants persistent output (conversion, batch processing). Skip -o and read stdout directly when the content is consumed immediately (summarization, Q&A). For example: "帮我把这个PDF转成markdown" → use -o to save to file, done "提取这篇论文里的表格" → use -o to save, then read the file and pull out the tables "这篇论文讲了什么" → stdout is fine, read the output directly and summarize "把PDF里的参考文献整理出来" → stdout or -o , then parse the references section Page Range Extraction Rule When --pages is used with -o pointing to a directory , the CLI derives the output filename solely from the input file name. This means multiple page-range extracts of the same file will overwrite each other. CRITICAL : You MUST avoid this by converting the output path to an explicit file path that includes the page range. # ❌ WRONG — same file overwrites itself mineru-open-api flash-extract report.pdf --pages 1-20 -o ./out/ mineru-open-api flash-extract report.pdf --pages 21-40 -o ./out/ # ✅ CORRECT — unique filenames per chunk mineru-open-api flash-extract report.pdf --pages 1-20 -o ./out/report_p1-20.md mineru-open-api flash-extract report.pdf --pages 21-40 -o ./out/report_p21-40.md Whenever the user asks to split a document by page ranges (e.g., "extract pages 1-20", "split into chunks"), always generate -o as an exact file path with the _p{range} suffix. User says You generate "把 report.pdf 每20页拆分成多个文件" -o ./out/report_p1-20.md , -o ./out/report_p21-40.md ... "extract pages 1-10 and 11-20" -o ./out/report_p1-10.md , -o ./out/report_p11-20.md Two Extraction Modes flash-extract — Fast, no auth Best for quick reads. No API key, no setup. mineru-open-api flash-extract report.pdf # to stdout (for immediate consumption) mineru-open-api flash-extract report.pdf -o ./output/ # save to file mineru-open-api flash-extract report.pdf -o ./output/report_p1-10.md # page range (explicit file path) mineru-open-api flash-extract report.pdf -o ./output/ --language en # language hint mineru-open-api flash-extract https://example.com/paper.pdf # URL input Supports: PDF, images (PNG, JPG, WebP...), DOCX, PPTX, Excel (XLS, XLSX) Limits: 10 MB / 20 pages per document Output: Markdown only — images, tables, and formulas may become placeholders Use flash-extract as the default unless the user needs more. extract — Precision, auth required Use when the user needs full-fidelity output: preserved images, accurate tables, LaTeX formulas, or non-Markdown formats. Requires a token via mineru-open-api auth . mineru-open-api extract report.pdf # to stdout mineru-open-api extract report.pdf -o ./out/ # save with all assets mineru-open-api extract report.pdf -o ./out/ -f md,docx # multiple output formats mineru-open-api extract report.pdf -o ./out/report_p1-20.md --pages 1-20 # page range (explicit file path) mineru-open-api extract report.pdf -o ./out/ --ocr # force OCR for scanned docs mineru-open-api extract *.pdf -o ./results/ # batch processing mineru-open-api extract --list files.txt -o ./results/ # batch from file list Supports: PDF, images, DOC, DOCX, PPT, PPTX, HTML Limits: 200 MB / 600 pages per document Output formats: md , json , html , latex , docx (comma-separated with -f ) Features: formula recognition (on by default), table recognition (on by default), OCR toggle, batch mode, model selection ( vlm , pipeline , html ) If the user hasn't authenticated yet, guide them to run mineru-open-api auth first. When to Use Which Situation Mode "What does this PDF say?" flash-extract Quick summary or content scan flash-extract Need images/tables/formulas preserved extract Document > 10 MB or > 20 pages extract Batch converting multiple files extract Need DOCX/LaTeX/HTML output extract Scanned document needs OCR extract with --ocr Language Support Default is ch (Chinese + English). Use --language to specify others. Common codes: Language Code Language Code Chinese + English ch Japanese japan English en Korean korean French fr Chinese Traditional chinese_cht German de Spanish es Russian ru Arabic ar Portuguese pt Hindi hi Italian it Vietnamese vi Thai th Turkish tr 80+ languages supported in total — use the PaddleOCR language code for any language not listed above. Data Flow Both commands send the document to MinerU's API (mineru.net) for processing. This is a stateless API call with no persistent storage. MinerU is open-source by OpenDataLab (Shanghai AI Lab): https://github.com/opendatalab/MinerU Troubleshooting Debug API requests: Add -v flag to see HTTP request/response details (e.g., mineru-open-api flash-extract report.pdf -v ) CLI not found: Install via one of: npm i -g mineru-open-api (Node.js) uv tool install mineru-open-api (Python/uv) macOS/Linux: curl -fsSL https://cdn-mineru.openxlab.org.cn/open-api-cli/install.sh | sh Windows: irm https://cdn-mineru.openxlab.org.cn/open-api-cli/install.ps1 | iex Auth error on extract: Run mineru-open-api auth to set up your token Timeout on large files: Increase with --timeout 600 (seconds) Wrong language output: Set --language explicitly (e.g., --language en for English docs)