🤖 PDF Q&A Chatbot with RAG & Generative AI

Live App: https://pdfanalyser-ai.streamlit.app/

In today's information-rich world, extracting meaningful insights from documents is more important than ever. This intelligent PDF Q&A chatbot leverages cutting-edge Retrieval-Augmented Generation (RAG) and Generative AI to transform how users interact with PDFs.

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🚀 Core Technologies

🔍 Retrieval-Augmented Generation (RAG)

Combines intelligent retrieval with generative response:

• Semantic-based document chunk retrieval
• Context-grounded answer generation
• Maintains relevance and accuracy using actual document content

📐 Vector Embeddings (Google Embedding)

• Text chunks are transformed into high-dimensional vector representations
• Uses cosine similarity to find the most relevant sections
• Enables semantic understanding beyond keyword matching

✨ Generative AI with Gemini 1.5 Pro

• Synthesizes information from top-matching document chunks
• Generates coherent and context-aware responses
• Supports configurable parameters for response style and length

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⚙️ Technical Workflow

1. PDF Processing & Chunking – Handled via LangChain
2. Embedding Generation – Using Google Generative AI Embedding API
3. Similarity Matching – Semantic search using cosine similarity
4. Response Generation – Gemini 1.5 Pro model responds using RAG

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🖥️ Built With

• Streamlit – Fast, interactive UI
• LangChain – Document parsing & chunking
• Google Generative AI SDK – Embedding & text generation
• NumPy, Pandas – Vector math and data handling

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🧠 Key Features

• 📄 One-click PDF upload & processing
• 💬 Clean, intuitive chat interface
• 🔎 Transparent sourcing via expandable reference passages
• 🔐 Secure API key management via Streamlit sidebar

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💼 Business Value

This solution showcases how RAG architecture and embeddings elevate document intelligence workflows:

• ⏱️ Save time searching large documents
• ✅ Deliver accurate, context-aware answers
• 📚 Maintain source traceability for auditing or compliance
• 🏥📊 Scalable across industries like legal, healthcare, and enterprise knowledge management

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📣 The Future of Document Interaction

The PDF Q&A Chatbot represents a new era of document engagement—where AI becomes an intelligent assistant to help you extract insights from your most valuable information assets.

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📌 Tags

#AI #GenerativeAI #RAG #DocumentIntelligence #EmbeddingModels #Streamlit

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