How to check if on trial or activated

How can you check if the version of software installed is activated or if it is still on the trial version?

I work in a college and we have Adobe CCE.

I have created a Windows 7 image (deployed using SCCM) with Photoshop and Acrobat DC on it - installed using the Adobe Creative Cloud.

I created an adobe serialisation file using the packager and tested this on a pc - I think it worked.  The problem is how to definitely tell?

Ultimately we would like to deploy this image with the serialisation as part of the task sequence to limit the number of steps that need carrying out after image deployment.

Thanks.