This is the 3100th most frequent Polish word.
prasowego
"Prasowego" means "press" or "related to the press."
Here, 'prasowego' relates to 'press department', describing the department in connection with press or media.
Czytał raport prasowego działu firmy.
He read the report of the company's press department.
In this sentence, 'prasowego' describes 'format', referring to the type of paper size widely used in print.
Kupiliśmy papier prasowego formatu.
We bought paper of press format.
The word 'prasowego' modifies 'event', indicating that the event is related to press or media coverage.