Build me a module and link it to my JAVA project

Java Developer required for completing a project. To make a module of a project. My project is based on steganography. It takes a audio file as input ,we enter some text or attach a file to the audio file using steganography. After insertion we only know theres some text hidden inside a audio file. Normally if a person will look at it ,it would appear as a normal audio [login to view URL] body can find out theres a secret text hidden in audio file. A password is also added to the file. And when we send the file to the reciever using any medium He needs our software ,that file and that password that we created when hiding text into a audio file. This much I have done in my project. and created a JAR file of it. Now I need somone who can add more features to the project ,anything that makes this project better and this project more professional.