Custom Link In WordPress Media “Attachment Details” Upload Screen

A hacky way to do it is to do a string replace on the tmpl-attachment-details template: // See wp_print_media_templates() in “wp-includes/media-template.php” function wpse157297_print_media_templates() { $my_link = ‘<a class=”my_link-attachment” href=”https://wordpress.stackexchange.com/questions/157297/my_link.php?url={{ data.url }}” target=”_blank”>’ . __( ‘My Link’ ) . ‘</a>’; $nonimage=”<# if ( “image” !== data.type && ! data.uploading ) { #>” . $my_link . ‘<# … Read more