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PDF To Markdown

Documents
pdf-to-markdown

PDF To Markdown is an Agent Skill for documents published in the majiayu000/claude-skill-registry repository on GitHub: a SKILL.md instruction file an AI agent can load to do this task.

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.

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How to use this skill

Bring this guide into your coding agent with a prompt tailored to the tool you use.

  1. Open your project in Codex.
  2. Copy and paste the prompt below.
  3. Review files and risks before approving any action.
Prompt to paste
Inspect the Agent Skill at https://github.com/majiayu000/claude-skill-registry/blob/HEAD/skills/data/pdf-to-markdown/SKILL.md and all supporting files. Report provenance, permissions, scripts, dependencies, and security risks. Propose an exact installation into .agents/skills/pdf-to-markdown, but wait for my approval before writing files or running scripts.

Copying this prompt does not install or run the skill. Review third-party files before use.

pdf-to-markdown

Convert PDF files to Markdown format.

Installation Required

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

Dependencies: pdf-parse

Quick Start

# 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)

{
  "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