Yes, you can and even you can monetize it. To do so open the Zedge Artist page, then click on Add content inside the Ringtone section. Now tap on Choose files and navigate to the location you stored the ringtone. You can upload one or multiple files, then click “Open". Audio files must be MP3 files with a duration of 30 seconds or less. If the file is not in the proper format it will display a red exclamation mark and it will not be uploaded. After you upload the file, it is available for everyone.