docling/docs/integrations/data_prep_kit.md

Docling is used by the [Data Prep Kit](https://data-prep-kit.github.io/data-prep-kit/) open-source toolkit for preparing unstructured data for LLM application development ranging from laptop scale to datacenter scale.

## Components
### PDF ingestion to Parquet
- 💻 [Docling2Parquet source](https://github.com/data-prep-kit/data-prep-kit/tree/dev/transforms/language/docling2parquet)
- 📖 [Docling2Parquet docs](https://data-prep-kit.github.io/data-prep-kit/transforms/language/pdf2parquet/)

### Document chunking
- 💻 [Doc Chunking source](https://github.com/data-prep-kit/data-prep-kit/tree/dev/transforms/language/doc_chunk)
- 📖 [Doc Chunking docs](https://data-prep-kit.github.io/data-prep-kit/transforms/language/doc_chunk/)