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Handling Tables, Images, and PDFs in RAG (EXPLAINED)

Scenario BasedRAGHard25 min read

Hard RAG interview question on handling tables, images, and pdfs in rag — architecture, trade-offs, eval, and production patterns.

TL;DR — Quick Answer

Use layout-aware PDF parsers, table extraction to structured rows, OCR/VLM captions for images, and modality-specific metadata. Embed table summaries plus cell text; optionally index figure captions separately for diagram-heavy corpora.

The Interview Question

Explain handling tables, images, and pdfs in rag. How would you design, implement, and evaluate this in a production RAG system? Discuss trade-offs and failure modes.

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