. ├── backend/ # FastAPI Python backend │ ├── pdf-xml-backend-api.py # Main API logic │ ├── requirements.txt # Python dependencies │ └── static_frontend/ # (Will be populated by frontend build) ├── ...

source ~/pdf_env/bin/activate pip install --upgrade pip pip install pdftotree==0.2.13 pip install h5py==2.10.0 pip install tensorflow pip install Keras pip install spacy python -m spacy download ...