PDF Book reader

PDF Book Reader is a feature-rich Flutter application designed to bridge the gap between simple document viewing and an immersive learning ecosystem. The app stands out with its dual-mode reading interface: a "High-Readability" mode that extracts and refines text for maximum comfort, and a "Layout-Preserved" mode for viewing original PDF structures with pinch-to-zoom capabilities.

One of its most powerful tools is the integrated Vocabulary Helper, which automatically identifies difficult terms based on user-defined difficulty levels (Easy, Medium, or Hard) and displays their meanings in-line. Additionally, the app features a robust translation engine capable of converting entire pages into support multiple languages like Sinhala, Tamil, French, Spanish, German, Hindi, Japanese on-the-fly. Users can personalize their experience with extensive typography settings—including font size, line height, and word spacing—and choose from multiple aesthetic themes like Sepia, Night Mode, and Paper Texture. Whether for academic research or leisure reading, PDF Book Reader provides a professional-grade set of tools to enhance comprehension and reduce eye strain.