When your free trial is still valid
If your 30-day free trial has not yet expired, you can change the license within the CADian application.
Run CADian and click on Help > CADian License Information.
From CADian License Information dialog, delete TEST from the Serial Number input field.
Then, enter your serial number correctly and click the OK button.
※ Make sure you do not confuse the number (0, 1) and alphabet (O, I).
After closing and restarting CADian application, the Authority registration process will begin.
Click the Next button to proceed with online registration. Once completed, CADian will launch automatically.
Click here to see the step-by-step instructions for registering the Authority Code.
When your free trial is already expired
If the CADian trial has already expired, you will see below message when you try to run the application.
In this case, open Windows File Explorer and navigate to C:\CADian\CADian xxxx (version) folder.
Press keyboard Ctrl + F to search for the CADSvp file, then double-click CADianSvp.exe to run it.
※ NOTE: The file name has changed to CADsvp.exe since CADian 2026 14.0.7 patch.
Please note that any versions including or earlier than CADian 2026 14.0.6, the file name is CADianSvp.exe.
From CADian License Information dialog, delete TEST from the Serial Number input field.
Then, enter your serial number correctly and click the OK button.※ Make sure you do not confuse the number (0, 1) and alphabet (O, I).
After closing and restarting CADian application, the Authority registration process will begin.
Click the Next button to proceed with online registration. Once completed, CADian will launch automatically.
Click here to see the step-by-step instructions for registering the Authority Code.