Your trial license key is:
60DA83EBDC36DD16D04330889B1CAC2D877EDFF6D216C64FF212B1A59C289159
Put the following code snippet at the beginning of your applications:
OfficeComponent.Licensing.Common.LicenseManager.SetLicenseKey("60DA83EBDC36DD16D04330889B1CAC2D877EDFF6D216C64FF212B1A59C289159")
If you see the copyright message after the trial key is set: