18 Pa.C.S. § 7320: Attaching advertisement without consent of publisher.

A person is guilty of a summary offense if he places or affixes or inserts, or causes to be placed or affixed or inserted, any advertisement, notice, circular, pamphlet, card, handbill, book, booklet, or other printed notice of any kind, on or in or to any newspaper, magazine, periodical, or book, when such newspaper, magazine, periodical, or book is in the possession of the owner, or publisher thereof, or in the possession of any news dealer, distributor, or carrier, or of any agent or servant of such owner or publisher, without the consent of the owner or publisher.