The pdf-extract-api is an API that utilizes modern OCR technology and Ollama-supported models to convert any document or image into structured JSON or Markdown text. It is built using FastAPI and employs Celery for asynchronous task processing, with Redis used for caching OCR results. The API has no reliance on cloud services or external dependencies, ensuring that all processing is completed in a local development or server environment, thereby safeguarding data security. It supports high-precision conversion from PDF to Markdown, including tabular data, numerical or mathematical formulas, and can convert PDFs to JSON using Ollama-supported models. Additionally, the API supports LLM-enhanced OCR results, removing personally identifiable information (PII) from PDFs, as well as distributed queue processing and caching.