Multimodal RAG: Chat with Complex PDFs (Text, Tables & Images)

In this tutorial, we will build a Multimodal RAG system using LangChain and the Unstructured library to chat with complex PDF documents containing text, images, plots, and tables. Google Colab Code: https://colab.research.google.com/drive/1JjruUu7PicQgCKZOF8rnV1wg9fhR7Hb7?usp=sharing *🧑🏻‍💻 My AI and Computer Vision Courses⭐* *📗YOLO26 Bootcamp: Real-Time Detection, Segmentation & Pose (13$)* https://www.udemy.com/course/yolo26-bootcamp-real-time-detection-segmentation-pose/?couponCode=PROMOTION10USD *📘Hands-On RAG Bootcamp: Build Apps with LangGraph & LangChain (13$)* https://www.udemy.com/course/hands-on-rag-bootcamp-build-apps-with-langgraph-langchain/?couponCode=PROMOTION13USD *📙Complete Computer Vision Bootcamp: YOLO to Multimodal AI (13$)* https://www.udemy.com/course/complete-computer-vision-bootcamp-yolo-to-multimodal-ai/?couponCode=PROMOTION13USD *📚 Generative AI, LLM Apps & AI Agents Masterclass 2025 (13$)* https://www.udemy.com/course/ai-agents-with-n8n-automate-anything-with-no-code/?couponCode=PROMOTION13USD *📘 YOLOv12 & YOLO26: Custom Object Detection & Web Apps 2026 (13$)* https://www.udemy.com/course/yolov12-custom-object-detection-tracking-webapps/?couponCode=PROMOTION13USD *📙 Modern Computer Vision with OpenCV 2025 (13$)* https://www.udemy.com/course/modern-computer-vision-with-opencv/?couponCode=PROMOTION13USD *📚 YOLO11 & YOLOv12: Object Detection & Web Apps in Python 2025 (13$)* https://www.udemy.com/course/yolo11-custom-object-detection-web-apps-in-python-2024/?couponCode=PROMOTION13USD *📘 AI 4 Everyone: Build Generative AI & Computer Vision Apps (13$)* https://www.udemy.com/course/ai-4-everyone-dive-into-modern-ai-with-llama-31-and-gemini/?couponCode=PROMOTION13USD *📙 YOLOv9, YOLOv10 & YOLO11: Learn Object Detection & Web Apps (13$)* https://www.udemy.com/course/yolov9-learn-object-detection-tracking-with-webapps/?couponCode=PROMOTION13USD *📕 LangChain: Build 26 LLM Apps with OpenAI, Llama & DeepSeek (14$)* https://www.ud