Hello Client, my name is Fawad and I am an Android developer with experience in developing apps with the functionalities you are looking for in your project. As a Flutter Android iOS developer, my responsibilities include designing, developing, and maintaining mobile applications for Android and iOS platforms.
I have experience in Android app development and have worked on a variety of projects before. Additionally, I have contributed to open-source projects and participated in hackathons and coding challenges. As part of this project, I would be glad to help you create a small app with user registration system, catalog of available courses, content management system (CMS), offline PDF viewing with encryption, YouTube integration and ad integration features.