bsk_pdfm_filter_pagination_prev_text
Default text is "« Previous Page", you may use the following filter to update it.
Example
/** * Change the default text( « Previous Page ) for previous page anchor in pagination * @return new previous page anchor text */ add_filter( "bsk_pdfm_filter_pagination_prev_text", "change_pagination_prev_text" ); function change_pagination_prev_text() { return '«'; }