I need to edit PDFs on an almost-daily basis, and UPDF meets (and likely exceeds) my needs. There are a couple of minor bugs I've noticed so far. For example, text that is pasted into a field doesn't always display until you tab out of that field. This is a minor inconvenience that will likely be addressed in future updates. Nevertheless, the price-to-value ratio is huge, and UPDF is a worthwhile investment.