Document Loader
Represent files or other document inputs at the beginning of a RAG pipeline.
Category: Input. Registry label: Document Loader. Supported format labels: PDF, DOCX, TXT, CSV, MD.
Purpose #
A document-loading stage makes source information available to downstream processing. In the Basic RAG and Hybrid Search templates, Document Loader is the first node in the chain.
Position in the graph #
Document Loader → Chunker
Design guidance #
Choose this node when your pipeline starts from documents. Check that it has a valid outgoing connection to the next processing stage. Use the Documents and onboarding previews to understand file selection without assuming that data has already been ingested.
Current limitation #
File selection and related UI are metadata-only previews. No backend upload, parsing, storage, or ingestion job is executed by this node in the current frontend.