PDF Question Answering App

This is a Streamlit-based application that allows users to upload multiple PDF files and ask questions about their content. The application uses OpenAI language models to interpret queries and provide answers based on the uploaded PDFs. The app employs a vector-based index to enhance the question-answering capabilities on multi-page or multi-document PDFs.

Features

• Multi-Document Upload: Upload up to 5 PDF files simultaneously.
• Model Selection: Choose between different OpenAI language models for custom performance.
• Dynamic Index Creation: Automatically creates an index from uploaded PDFs to enable efficient querying.
• Interactive Q&A: Enter questions and receive detailed answers based on the document content.
• Conversation History: Track past questions and answers within the session.

Requirements

• Python 3.8+
• Streamlit
• OpenAI API Key
• PyMuPDF4LLM
• LlamaIndex

Setup and Installation

1. Clone the Repository

   git clone https://github.com/OrenGrinker/pdfLLM.git
   cd pdfLLM

2. Install Dependencies

   Make sure you have pip installed. Run the following command to install the required Python packages:

   pip install -r requirements.txt

3.Set Up OpenAI API Key

The app requires an OpenAI API key to function. You will be prompted to enter your API key when running the application.

Usage

1. Run the Application

   Start the app by running the following command:

   streamlit run app.py

2. Upload PDF Files

   In the sidebar, you can upload up to 5 PDF files. The app will create an index for efficient querying.

3. Ask Questions

   Enter questions in the main content area, and the app will retrieve answers based on the content of the uploaded PDFs.

4. Choose Model Select a model from the sidebar (e.g., gpt-4o, gpt-4o-mini, or gpt-4) to adjust response specificity and speed.

Code Structure

• app.py: Main file that initializes the Streamlit app, sets up user interface components, and handles interactions.
• utils/index_utils.py: Contains functions to create a vector-based index from uploaded PDFs.
• utils/query_utils.py: Provides functions to query the index and retrieve answers based on user input.

Example Workflow

• Upload your PDF files in the sidebar.
• Choose the desired model for response generation.
• Ask questions about the content of the PDFs in the main input field.
• View answers and scroll through conversation history to see previous queries and responses.

Contributing

Feel free to open issues or submit pull requests for any improvements or bug fixes.

License

This project is licensed under the MIT License.