How to Hide PDF & Print by BestWebSoft Admin Menus

function plt_hide_pdf_print_menus() {
	//Hide "PDF & Print".
	remove_menu_page('pdf-print.php');
	//Hide "PDF & Print → Settings".
	remove_submenu_page('pdf-print.php', 'pdf-print.php');
	//Hide "PDF & Print → Headers  Footers".
	remove_submenu_page('pdf-print.php', 'pdf-print-templates.php');
	//Hide "PDF & Print → BWS Panel".
	remove_submenu_page('pdf-print.php', 'pdfprnt-bws-panel');
	//Hide "PDF & Print → Upgrade to Pro".
	remove_submenu_page('pdf-print.php', 'https://bestwebsoft.com/products/wordpress/plugins/pdf-print/?k=d9da7c9c2046bed8dfa38d005d4bffdb&pn=101&v=2.4.1&wp_v=6.8.1');
}

add_action('admin_menu', 'plt_hide_pdf_print_menus', 11);

Where do I put this code?