If it is the trial version and you don't have a valid serial number, no.
That's so sad, oh well... thank you
A just in case note....
You cannot remove the Adobe watermark from an export of the tryout, be the export a file saved to the computer hard drive or a burn to disc.
You can delete the Adobe watermark from a project file from the tryout by opening the tryout project file in the purchased product. There are two
possibilities after that
a. You go to Timeline Menu/Delete Rendered Files in tryout project opened in the purchased program and the Adobe watermark is gone
b. You do nothing but import the tryout project file (with Adobe watermark) into the purchased program and the Adobe watermark automatically disappears.
Way "a" is the classical approach. Way "b" has been found to be the case for many as well as myself.
Please review and consider and then let us know which one worked for you.