PDF Diff App

A monorepo application to compare two PDF files and show their text differences. Built with React (frontend) and Node.js/Express (backend).

Features

• Upload two PDF files and see a highlighted text diff
• Simple, modern UI
• Fast backend processing using pdf-parse and diff

Project Structure

apps/
  frontend/   # React + Vite frontend
  backend/    # Node.js/Express backend (TypeScript)

Getting Started

Prerequisites

• Node.js (v20+ recommended)
• npm

Install dependencies

From the project root:

npm install
cd apps/frontend && npm install
cd ../backend && npm install

Run both frontend and backend concurrently

From the project root:

npm run dev

• Frontend: http://localhost:5173
• Backend API: http://localhost:3001

Usage

1. Open the frontend in your browser.
2. Upload two PDF files.
3. Click "Compare" to see the text diff highlighted.

Customization

• To change ports, edit the scripts or server configs in apps/frontend and apps/backend.
• For visual PDF diffing, further enhancements are possible (see Issues/TODO).

License

MIT