When you launch PDF2Word for the first time, you'll be asked to enter your purchase information to activate your license. The easiest way to do this is using the Online Method.
When you run PDF2Word for the first time, you will see it as an Trial Version until you enter your Payment Code. The buttons on the splash screen will show the options "Activate", "Purchase Software", or "Continue Evaluation". Select "Activate"
Click the "License" button in the toolbar.
Enter the Payment Code and Email Address that were provided to you in your purchase email.
The "Online Activation" option should be selected by default; if not, select it now.
You should now be activated and ready to use PDF2Word.
*If your Online Activation should fail, you may want to try using the Website Method.