Self-hosted PDF layout-analysis service (choice of a VGT or LightGBM model) exposed over an HTTP API: segments and classifies page regions — text, titles, pictures, tables, and similar — as structured output rather than a flat text dump. Built by HURIDOCS, a human-rights documentation NGO, originally for processing large volumes of case files where a region's semantic type (not just its text) matters for downstream analysis. Runs as a Docker service you deploy and call, not a library you import.