learndash_post2pdf_conv_image_align_center learndash_post2pdf_conv_image_align_center( array $matches ) Adds the markup to align image to center. ContentsDescription Parameters Return Source Related Namespace @package Description # Used as callback in preg_replace_callback function. Parameters # $matches (array) (Required) An array with strings to search and replace. Return # (string) Image align center output. Source # File: includes/ld-convert-post-pdf.php Related # Namespace # global @package # LearnDash / PDF