Alan
Please double check to make sure that you are on course to download specifically Premiere Elements 12. There is no PDF conversion software involved in this.
My recollection is this...
Once you click the download button in the web page that I cited, you should be getting a download page. Look to the bottom of that to select Premiere Elements 12 specifically. Often it opens to show some program that you do not want. My recollection is there is an arrow or the like to do a click by click to get to Premiere Elements selected from the many programs in the line up.
See if that is the case. If not, I will start a tryout download today and give you the step by step to make sure Adobe has not changed the process
since I used it last.
ATR