PDF Reader APK

Native PDF Reader An offline-first, high-performance Android PDF reader built with modern Android development standards. This project demonstrates the implementation of **Clean Architecture**, **Jetpack Compose**, and **C++ NDK integration** to handle 16KB memory page compliance securely and efficiently. Features **High-Performance Rendering:** Integrates a compiled C++ PDFium NDK engine. **Custom GPU Filters:** Uses ColorMatrixColorFilter for hardware-accelerated Sepia and Dimmed reading modes. **Advanced Touch Handling:** Custom FrameLayout wrapper to intercept gestures and enable double-tap zooming without conflicting with the PDF engine. **Native RTL Localization:** Full Arabic support utilizing Android's AppCompatDelegate. **Local Persistence:** Room database integration to remember recently opened files and specific page numbers. Tech Stack **UI:** Jetpack Compose, Material 3 **Architecture:** Clean Architecture (Data, Domain, Presentation), MVVM, StateFlow **Dependency Injection:** Dagger Hilt **Local Storage:** Room Database **Engine:** C++ PDFium (marain87 fork) **CI/CD:** GitHub Actions (Automated Debug APK Builds) Screenshots | PDF Screen (Dark Mode) | My Documents (RTL Arabic, Light Mode) | Settings (RTL Arabic, Dark Mode) | | :---: | :---: | :---: | Installation 1. Go to the Releases tab. 2. Download the latest app-release.apk. 3. Install on any Android 8.0+…