Learn to build a full-stack application with Spring Boot and React.js for uploading and downloading files, particularly images. Dive into creating a backend using Spring Boot, storing files in Amazon S3, and developing a frontend with React and hooks. Explore essential concepts like setting up AWS credentials, implementing S3 bucket operations, creating user profile models, and building RESTful APIs. Master frontend development with React components, Axios for HTTP requests, and React Dropzone for file uploads. Follow along with hands-on exercises to implement file upload and download functionalities, connect the frontend and backend, and polish the user interface. By the end of this comprehensive tutorial, gain practical experience in full-stack development and file handling in web applications.