AI Presentation Generator

A Streamlit app that turns a single topic into a PowerPoint presentation using Gemini for slide content and Unsplash for slide images.

Preview

What it does

• Loads API keys from .env
• Sends a prompt to Gemini for structured slide JSON
• Optionally fetches matching images from Unsplash for each slide
• Previews the generated slide outline and images in Streamlit
• Creates a .pptx file in generated_presentations/
• Lets you download the same .pptx file from the browser

Setup

1. Create and activate a virtual environment.
2. Install dependencies: pip install -r requirements.txt
3. Add your API keys to .env: GEMINI_API_KEY=your_key_here UNSPLASH_ACCESS_KEY=your_unsplash_key_here

You can also use GOOGLE_API_KEY instead of GEMINI_API_KEY.

Run

streamlit run app.py

Output

After you click Generate presentation, the app will:

• save the PowerPoint file in generated_presentations/
• show the saved file path in the UI
• provide a download button for the same file
• embed Unsplash images when that option is enabled

Notes

• The app defaults to the gemini-2.5-flash model.
• Export requires python-pptx to be installed.
• The API keys are never shown in the UI.
• The code includes inline comments around the main generation, image, and export steps.