Livingston have signed Polish goalkeeper Mariusz Liderda and agreed a contract extension with James McPake.
Liberda, Wdowczyk and Hottek have joined Livingston
The 30-year-old Liderda was available after leaving Zaglebie Lubin in his homeland and having spent most of his career with Polonia Warsaw.
He is Livi's third foreign import of the week, Czech midfielder Jakub Hottek and director of football Dariusz Wdowcyk having arrived on Thursday.
Defender McPake, 23, has signed on for an additional two years.