I do not understand why some users of this site are so critical of offers sometime.
FYI the free version is fully functional, and for the pdf conversion you can install a virtual pdf Printer like PDF creator which is great by the way.
I suppose you dont have a problem that you have to pay a new subscription every year for your antivirus program or the next Windows Version but you do want to have all software for free. And how will the programmers earn their living if their work is not paid for? And keep updating the Software? The offers on this site and other sites are part of the Marketing strategy of the developers to make their products widely known, dont you get that?
What I mean is that you can flag up issues about a program’s usability and shortcomings but not all the time grumble about something you dont have to pay a cent for, nor are you required to try it if you dont want.