Web Content Accessibility Guidelines Complience

Hi,

the img html element of attachment file’s pdf for example

<img src="/wp-content/plugins/custom-post-type-pdf-attachment/images/pdf.png" style="z-index: 2147483646; position: relative;">

not contain “alt” attribute, requested by WCAG 2.0

I not be able to override your the shortcode , I developed this :

function custom_pdf_attachment_shortcode_child_theme( $atts ) {
         global $post;
         extract( shortcode_atts( array(
              'file' => '',
              'name' => ''
         ), $atts ) );

         if(!$file){
            return;
         }

         if(!cpta_get_file_url($post->ID,$file)){
            return;
         }

         $pdf_open_in = get_option('pdf_open_in');
         $target = ( $pdf_open_in == '' ? '_self' : $pdf_open_in ); 

         if($name){
            $ret = '<img src="'.plugins_url( CPTA_PLUGIN_DIR . '/images/pdf.png' ).'"  alt="Download PDF '.$name.'" > <a href="'.cpta_get_file_url($post->ID,$file).'" target="'.$target.'">'.$name.'</a>';
        } else {
            $file_mime_data = wp_check_filetype(cpta_get_file_url($post->ID,$file));
            $file_info = pathinfo(cpta_get_file_url($post->ID,$file));
            $ret = '<img src="'.plugins_url( CPTA_PLUGIN_DIR . '/images/pdf.png' ).'"  alt="Download PDF '.$file_info['basename'].'" > <a href="'.cpta_get_file_url($post->ID,$file).'" target="'.$target.'">'.$file_info['basename'].'</a>';
        }
         return $ret;
}

I think good is a good feature more, is it possible to add that ?
Thank you.
Beste regards.

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