I usually use Adobe Reader when reading PDF file or download something from the net. Compared to microsoft solution this one is more advanced in terms of variety of instruments.
Yeah, one should issue a subscription, but the number of programs getting available with this subscription is immense. Afaik, not only Reader is available.
But the sticking point is the price. I cant get along with it since it seems to be so expensive to pay for this instrument. Maybe I am just stingy, idk.