Worked on enhancing the stability of the Flutter PDF Viewer in the syncfusion-content/flutter-docs repository by addressing a critical bug affecting the text selection context menu. Focused on improving user experience and reliability, the developer resolved inconsistent UI states that occurred during text selection by introducing a key to the PdfViewer widget, ensuring accurate widget identification and robust state management. This targeted bug fix, implemented using Dart and Flutter, eliminated a root cause of instability in the documentation viewer. The work emphasized careful debugging and documentation practices, resulting in a smoother and more dependable interface for developers and readers interacting with PDF content.