pdf-chat / README.md
Kunal
updated readme
e018450
---
title: Pdf Chat
emoji:
colorFrom: yellow
colorTo: green
sdk: gradio
sdk_version: 5.31.0
app_file: app.py
pinned: false
---
# 📄 Chat with PDF – Gemini AI Agent
A conversational AI agent that lets you upload any PDF and chat with its contents!
Built with [smolagents](https://github.com/smol-ai/smol-agents), [Google Gemini](https://aistudio.google.com/), [pypdf](https://pypdf.readthedocs.io/), and [Gradio](https://gradio.app/).
---
## 🌐 Try it Online
> **Live Demo:**
> [https://huggingface.co/spaces/your-username/your-space-name](https://huggingface.co/spaces/LazyHuman/pdf-chat)
---
## 🏗️ Tech Stack
| Layer | Technology | Purpose |
|--------------------|-------------------------------------------|--------------------------------------------|
| LLM Orchestration | [smolagents](https://github.com/smol-ai/smol-agents) | Agent framework, tool integration |
| Language Model | [Google Gemini 1.5 Flash](https://aistudio.google.com/) | Large Language Model for Q&A |
| LLM API Adapter | [LiteLLM](https://github.com/BerriAI/litellm) | Unified LLM API interface |
| PDF Processing | [pypdf](https://pypdf.readthedocs.io/) | Extracts text from uploaded PDF files |
| Web UI | [Gradio](https://gradio.app/) | Interactive chat interface |
| Environment Mgmt | [python-dotenv](https://pypi.org/project/python-dotenv/) | Loads environment variables (local dev) |
| Deployment | [Hugging Face Spaces](https://huggingface.co/spaces) | Cloud hosting (public demo) |
---
## 🚀 Features
- **Upload any PDF** and extract its text instantly.
- **Ask questions** about the document—get answers powered by Google Gemini (1.5 Flash).
- **Conversational interface** using Gradio.
- **Runs locally or on Hugging Face Spaces**.
---
## 🛠️ Installation (Local)
1. **Clone this repository:**
```bash
git clone https://github.com/KunalGupta25/chat-with-pdf.git
cd chat-with-pdf
```
2. **Install dependencies:**
```bash
pip install -r requirements.txt
```
3. **Set up your Gemini API Key:**
- Get your key from [Google AI Studio](https://aistudio.google.com/app/apikey).
- Create a `.env` file in the project root:
```
GEMINI_API_KEY=your_actual_key_here
```
---
## 📝 Usage
### **Local**
```py
python app.py
```
Open [http://localhost:7860](http://localhost:7860) in your browser.
### **Hugging Face Spaces**
- Go to your Space: [https://huggingface.co/spaces/your-username/your-space-name](https://huggingface.co/spaces/LazyHuman/pdf-chat)
- Click **"Duplicate Space"** to make your own copy, or use it directly if public.
- Add your `GEMINI_API_KEY` as a secret in the Space settings (if you duplicate or deploy privately).
---
## ⚙️ Configuration
- **Model:** Uses `"gemini/gemini-1.5-flash"` by default. If you have access to `"gemini/gemini-1.5-pro"`, change the `model_id` in `app.py`.
- **API Key:** Must be a [Google AI Studio](https://aistudio.google.com/app/apikey) key, not a Vertex AI or GCP key.
- **No `api_base` needed** for Gemini AI Studio keys.
---
## 🧩 How it Works
1. **Upload a PDF**: The app extracts all text using `pypdf`.
2. **Ask a question**: Your question and the extracted text are sent to the Gemini model via smolagents.
3. **Get answers**: The agent uses Gemini to answer your question, referencing the PDF content.
---
## 🧑‍💻 For Developers
- **Add more tools**: Use the `@tool` decorator from smolagents to add custom functions.
- **Customize the UI**: Edit the Gradio blocks in `app.py`.
- **Chunking or RAG**: For large PDFs, consider splitting text into chunks and using retrieval-augmented generation.
---
## 📜 License
MIT License.
See [LICENSE](LICENSE) for details.
---
## 🙌 Acknowledgments
- [smol-ai/smol-agents](https://github.com/smol-ai/smol-agents)
- [Google AI Studio](https://aistudio.google.com/)
- [Gradio](https://gradio.app/)
- [pypdf](https://pypdf.readthedocs.io/)
---
**Enjoy chatting with your PDFs!**
For questions or contributions, open an issue or pull request.
---