Mistral OCR App

The Mistral OCR App is a Streamlit-based web application that leverages the Mistral OCR API to extract text from both PDF documents and images. Users can either provide a URL or upload a local file. The app displays the original document (or image) in a preview alongside the extracted OCR results and offers a seamless download option—all without refreshing the page.

🚀 Try the Mistral OCR App Live!

🔗 Live Demo: Mistral OCR App

Experience the power of Mistral OCR in action! Upload PDFs or images and extract text seamlessly with this interactive Streamlit-based OCR app.

Features

• Dual File Support: Process both PDFs and images.
• Multiple Input Methods: Choose between URL input or local file uploads.
• Real-Time Preview: Display the original file (via an iframe for PDFs or using st.image for images).
• OCR Extraction: Get OCR results presented in a clean, two-column layout.
• Downloadable Results: Download the OCR output with a custom HTML link that avoids a full page refresh.
• Interactive Interface: Built with Streamlit for a smooth and interactive user experience.

Installation

Prerequisites

• Python 3.7 or later
• Streamlit
• Mistralai Python Client

Steps

1. Clone the Repository:

   git clone https://github.com/AIAnytime/Mistral-OCR-App.git
   cd Mistral-OCR-App

2. Create and Activate a Virtual Environment (Optional but Recommended):

   On macOS/Linux:

   python -m venv venv
   source venv/bin/activate

   On Windows:

   python -m venv venv
   venv\Scripts\activate

3. Install Required Dependencies:

   Create a requirements.txt file (if not already present) with:

   streamlit
   mistralai
   

   Then install them:

   pip install -r requirements.txt

4. Set Up Your Mistral API Key:

   The app requires a Mistral API key. Export your API key as an environment variable:

   • On macOS/Linux:

     export MISTRAL_API_KEY=your_api_key_here

   • On Windows (Command Prompt):

     set MISTRAL_API_KEY=your_api_key_here

Usage

To run the app, use the following command:

streamlit run app.py

How It Works

1. API Key Entry:
   When you launch the app, you'll be prompted to enter your Mistral API key.

2. File Type & Source Selection:
   Choose whether you want to process a PDF or an Image and select the source type—either via a URL or by uploading a file.

3. Processing:
   Click the Process button to send the document to the Mistral OCR API. The app then:

   • Displays a preview of the document in the left column.
   • Shows the extracted OCR results in the right column.
   • Provides a download link for the OCR output.

4. Download:
   Click the download link to save the OCR result as a text file without refreshing the page.

Code Overview

• app.py:
  The main Streamlit application file that contains the logic for:

  • User input handling (API key, file type, source type)
  • Document preparation (base64 encoding for local uploads)
  • Calling the Mistral OCR API
  • Displaying the preview and OCR results
  • Providing a custom download link

• README.md:
  This file, which provides detailed instructions and documentation for the project.

• requirements.txt:
  A list of the required Python packages.

Contributing

Contributions are welcome! If you have suggestions or find issues, please feel free to:

• Open an issue in the repository.
• Submit a pull request with improvements or bug fixes.

License

This project is licensed under the MIT License.

Acknowledgements

• Streamlit for making interactive web app development easy.
• Mistralai for their powerful OCR API and Python client.

Contact

For any questions or support, please open an issue in this repository or contact [sonu@aianytime.net].