AgentSkillsCN

pdf-to-markdown

将 PDF 文件转换为 Markdown 格式。适用于从 PDF 中提取文本、基于 PDF 报表生成可编辑的文档，或将 PDF 内容转化为版本可控的 Markdown 文件。

SKILL.md
--- frontmatter
name: pdf-to-markdown
description: Convert PDF files to Markdown. Use when extracting text from PDFs, creating editable documentation from PDF reports, or converting PDF content to version-controlled markdown files.
allowed-tools: Bash, Read, Write

pdf-to-markdown

Convert PDF files to Markdown format.

Installation Required

bash
cd .claude/skills/pdf-to-markdown
npm install

Dependencies: pdf-parse

Quick Start

bash
# Basic conversion
node .claude/skills/pdf-to-markdown/scripts/convert.cjs \
  --file ./document.pdf

# Custom output path
node .claude/skills/pdf-to-markdown/scripts/convert.cjs \
  --file ./doc.pdf \
  --output ./output/doc.md

CLI Options

OptionRequiredDescription
--file <path>YesInput PDF file
--output <path>NoOutput Markdown path (default: input name + .md)

Output Format (JSON)

json
{
  "success": true,
  "input": "/path/to/input.pdf",
  "output": "/path/to/output.md",
  "wordCount": 1523,
  "warnings": ["Tables may not be accurately converted"]
}

Supported Elements

  • •Text extraction from digital PDFs
  • •Headings (detected by font size heuristics)
  • •Paragraphs
  • •Basic lists
  • •Links (when embedded in PDF)

Known Limitations

  • •Tables: Very limited support; may not render correctly
  • •Multi-column layouts: Text may interleave between columns
  • •Scanned PDFs: NOT supported (requires OCR - see alternatives below)
  • •Images: NOT extracted (PDF images are not included in output)
  • •Complex formatting: May be simplified or lost
  • •Password-protected PDFs: NOT supported

Alternatives for Unsupported Cases

For scanned PDFs (OCR needed):

  • •Use scribe.js-ocr library (AGPL license)
  • •Commercial OCR services (Google Cloud Vision, AWS Textract)

For complex tables:

  • •Consider AI-based extraction (LLM post-processing)
  • •Manual review and correction

For image extraction:

  • •Use unpdf library with sharp for image extraction
  • •Process images separately and reference in markdown

Troubleshooting

Dependencies not found: Run npm install in skill directory Empty output: PDF may be scanned/image-based (requires OCR) Garbled text: PDF may use embedded fonts not supported by parser Memory issues: Large PDFs may require --max-old-space-size=4096 flag

IMPORTANT Task Planning Notes

  • •Always plan and break many small todo tasks
  • •Always add a final review todo task to review the works done at the end to find any fix or enhancement needed