How to remove trial message
|Progress® Telerik® Reporting
After the license is purchased you need to download the Telerik Reporting DEV installer from your Telerik account -> Downloads. You can refer to this help article - How to download Telerik Reporting installer. The installer will replace the trial version. Choose Purchase from Licence dropdown menu and you will be able to download the .msi file.
You may also check Upgrading Trial to Purchase section.