4Videosoft iPhone Ringtone Maker can help you create and make iPhone ringtone from any DVD, video and audio file to iPhone M4R ringtone. You can use it to transfer ringtone to iPhone freely and directly. It can be used to trim ringtone length from the source DVD, video or audio and add the M4R ringtone to iPhone directly. It newly supports iOS 6, iPhone 5, iPad mini etc. What's more, it adds the function of digital signature.