{"name":"Invoice OCR API","version":"3.0.0","pipeline":"nemoretriever-ocr-v1 → nvidia-nemotron-nano-9b-v2","pdf_support":"Each PDF page is rendered to PNG (200 dpi) before OCR","endpoints":{"POST /extract-invoice":"Upload tax invoice image or PDF → full structured JSON","GET  /health":"Health check","GET  /docs":"Swagger UI"}}