BookReader 📚 is a SwiftUI 📱 based iOS/Mac application 📲 for reading PDF 📝 books. It is designed 🎨 using MVVM pattern and uses Combine 🔍 and UIKit to wrap PDFKit and some other GUI elements. The application supports seamless zoom 🔍 preserving scrolling, invert colors 🌈 and programming languages 🧑💻 syntax highlighting in the PDF 📚 books.