ocr

PDF/이미지를 Claude vision으로 OCR하여 마크다운 변환. MUST use this skill when user: (1) asks to convert PDF/image to markdown, (2) asks to OCR any file, (3) sends PDF/image file and asks to extract/read/변환/추출, (4) mentions 'OCR', 'PDF 변환', '이미지 변환', '텍스트 추출'. This skill uses Task agent to protect main context - NEVER process files directly in main context.