Omnibus Election Code
Section 195. Manner of preparing the ballot. - The voter, upon receiving his folded ballot, shall forthwith proceed to one of the empty voting booths and shall there fill his ballot by writing in the proper space for each office the name of the individual candidate for whom he desires to vote.
No voter shall be allowed to enter a booth occupied by another, nor enter the same accompanied by somebody, except as provided for in the succeeding section hereof, nor stay therein for a longer time than necessary, nor speak with anyone other than as herein provided while inside the polling place. It shall be unlawful to prepare the ballot outside the voting booth, or to exhibit its contents to any person, or to erase any printing from the ballot, or to intentionally tear or deface the same or put thereon any distinguishing mark. It shall likewise be unlawful to use carbon paper, paraffin paper, or other means for making a copy of the contents of the ballot or make use of any other means to identify the vote of the voter.