📚 PDF AI Assistant

A Streamlit-based web application that allows users to upload single or multiple PDF files and interact with their contents using OpenAI's GPT-3.5 Turbo. Users can extract text, ask questions, generate summaries, highlight relevant sections, and download results.

---

🚀 Features

• 📤 Upload single or multiple PDF files
• 🧠 Ask questions about PDF contents using AI
• 📑 View extracted text from PDFs
• ✨ Highlight relevant sections in the original PDF
• 📝 Generate and download AI-based summaries
• 💾 Download AI responses and summaries

---

🛠️ Tech Stack

• Streamlit – for building the UI
• OpenAI GPT-3.5 Turbo – for natural language processing
• pdfplumber – for text extraction
• PyMuPDF (fitz) – for PDF manipulation and highlighting
• Python – core programming language

---

🔐 API Key Required

This app uses the OpenAI API, which requires an API key.

1. Get your key from https://platform.openai.com/account/api-keys.

2. Replace the following line in main.py:

   openai.api_key = "sk-..."  # Replace with your actual API key