Certificate AI Text Extraction

A Next.js application that extracts text from certificate images and PDFs using Google Gemini AI and traditional OCR.

Features

• Upload certificate files (JPG, PNG, PDF)
• Extract text using OCR (Optical Character Recognition)
• Parse common certificate fields (name, roll number, marks, etc.)
• Modern UI with TailwindCSS
• Responsive design with TailwindCSS

Setup

1. Install dependencies:

npm install

2. Set up Google Gemini AI API key:

   • Get your API key from Google AI Studio
   • Create a .env.local file in the project root
   • Add your API key: GEMINI_API_KEY=your_api_key_here

3. Run the development server:

npm run dev

4. Open http://localhost:3000 in your browser.

Usage

1. Upload a certificate file (JPG, PNG, or PDF)
2. Click "Extract Text" to process the document
3. View the extracted data and raw text

Technology Stack

• Next.js 14
• React 18
• Google Gemini AI for advanced text extraction from images
• Tesseract.js for OCR (fallback)
• Formidable for file upload handling
• pdf-parse for direct PDF text extraction
• TailwindCSS for styling

API Endpoints

• POST /api/gemini-ocr - Processes uploaded files using Gemini AI and returns extracted text
• POST /api/ocr - Legacy OCR endpoint using Tesseract.js