No agreement by an employe to waive, release, or commute his rights to compensation, or any other rights under this act, shall be valid. No agreement by an employe or by employes to pay all or any portion of an employer's contributions, required under this act from such employer, shall be valid. No employer shall, directly or indirectly, make or require or accept any deduction from the remuneration of individuals in his employ to finance contributions required from him under this act, or require or accept any waiver by an employe of any right hereunder. Any employer or officer or agent of an employer who violates any provision of this section shall be guilty of a misdemeanor, and, upon conviction thereof, shall be sentenced for each offense to pay a fine of not less than five hundred dollars nor more than one thousand five hundred dollars, or be imprisoned for not more than six months, or both.