acrobat

Let me start by saying I know absolutely NOTHING about javascript. I've got a one time problem and don't know where to start. I'm trying to set up a semi-automated PDF for people at work to use. There is a quantity field and a 'fee' field. I'd like to put some javascript in the 'fee' field...

That's basically it. I don't have adobe on my computer...today I turn it on and I see an icon for Acrobat DC. I never requested it. I never approved it. What is it? I mean I have repeatedly deleted adobe worms from installing themselves into my registry and so forth...but I am pretty sure I...