Despite a two-hour and 19-minute rain delay, the Nittany Lions took care of business in Morgantown.
Penn State opens its season at noon on Saturday in Morgantown, West Virginia.
Evans caught four passes for 94 yards and a touchdown last season.
Smith was waived by the Eagles the day prior.
Hardy re-signed with the Bills after being released on Tuesday.
Hamler was signed after being left off the 53-man roster on Tuesday.