title: How do I attach a pdf file to a Gravity Forms Notification?
body: <p>Gravity forms offers a way to attach files from the file uploader (See code below), but how would I change this code to simply attach my own PDF file from either a hidden field value or simply paste the pdf file within this code? I tried a few things but it didn't work. Any help would be appreciated!</p>
  
  <pre><code> add_filter( 'gform_notification', 'change_user_notification_attachments', 10, 3 );
   function change_user_notification_attachments( $notification, $form, $entry ) {
  
  //There is no concept of user notifications anymore, so we will need to target notifications based on other criteria, such as name
  if ( $notification['name'] == 'User Notification' ) {
  
      $fileupload_fields = GFCommon::get_fields_by_type( $form, array( 'fileupload' ) );
  
      if(!is_array($fileupload_fields))
          return $notification;
  
      $attachments = array();
      $upload_root = RGFormsModel::get_upload_root();
      foreach( $fileupload_fields as $field ) {
          $url = $entry[ $field['id'] ];
          $attachment = preg_replace( '|^(.*?)/gravity_forms/|', $upload_root, $url );
          if ( $attachment ) {
              $attachments[] = $attachment;
          }
      }
  
      $notification['attachments'] = $attachments;
  
  }
  
  return $notification;
    }
  </code></pre>