Added comment

module/Finna/src/Finna/RecordDriver/SolrMarc.php

@@ -263,6 +263,8 @@ public function getAllImages($language = 'fi', $includePdf = true)
             $type = $this->getSubfield($url, 'q');
             $image = 'image/jpeg' === $type || strcasecmp('image', $type) === 0;
             $pdf = 'application/pdf' === $type || preg_match('/\.pdf$/i', $address);
+            // Check second indicator for exact presentation of the resource.
+            // Ignore for images etc. since they can use value '2' e.g. to represent just the cover.
             if ($pdf && !in_array($url['i2'], [' ', '0'])) {
                 continue;
             }