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Development of a Mobile Application for PDF Viewing – Free Books Online

I developed a mobile application for advanced PDF viewing, designed to allow users to search, read, and resume their documents at any time. The project included the development of a back-end with REST APIs for content management and a web front-end for direct PDF consultation via browser.

Structure and Implemented Features

Back-End Development with REST API

• Created a custom Content Management Framework (CMF) to handle PDF distribution.
• Implemented REST APIs for secure and high-performance content retrieval.
• Integrated Doctrine ORM for advanced MySQL database management, improving system scalability.

Web Front-End for PDF Reading

• Designed a responsive web interface to allow users to read documents directly from the browser.
• Implemented a page-by-page navigation system, enhancing the user experience for long reading sessions.
• Added a reading progress system, allowing users to resume from the last consulted page.

Mobile Application Development with Ionic 2

• Developed a hybrid app compatible with Android, built with Ionic 2 and Angular.
• Integrated REST APIs to synchronize available documents between the web and mobile app.
• Optimized PDF navigation for mobile devices, including touch gestures and zoom support.
• Implemented local caching, allowing users to read documents even without an internet connection.

Technological and Structural Choices

Back-End:

• PHP with MVC architecture, using an internally developed CMF for performance optimization.
• Doctrine ORM for efficient MySQL database management, optimizing queries and data access.
• REST API with JSON, providing a standardized interface for the mobile app and web platform.

Web Front-End:

• Twig for dynamic page rendering.
• HTML5, CSS3, JavaScript for a fluid and responsive interface.

Mobile Application:

• Ionic 2 and Angular, ensuring an optimized hybrid app for Android devices.
• TypeScript, for better code management and maintainability.
• Offline Storage, allowing users to save PDFs locally and access them without an active internet connection.

Results Achieved

• Enhanced reading experience, with smooth navigation and reading resumption.
• Centralized content management, ensuring seamless synchronization between web and mobile.
• Scalable and high-performance system, with REST API optimization for fast document access.
• Offline availability, enabling users to view PDFs even without an internet connection.

Technical Skills Utilized

• Back-End: PHP, MVC, MySQL, Doctrine ORM, REST API, JSON.
• Web Front-End: HTML5, CSS3, JavaScript, Twig.
• Mobile Development: Ionic 2, Angular, TypeScript, Offline Storage.