Reply To: ACF File – Preview of document

• MarcGuay

• June 12, 2023 at 2:33 pm

Old one but here’s a quick way to do this:

add_filter( 'acf/load_attachment', 'custom_load_attachment', 10, 3);
function custom_load_attachment ($response, $attachment, $meta){
  if ($response['type'] == 'image'){
    $response['icon'] = $response['sizes']['thumbnail'];
  }
  return $response;
}