#7684

diff --git a/src/CommandLine/Poppler.php b/src/CommandLine/Poppler.php
index 9e504d249d4a9b5240144fbf1daedf66ca26fea2..bce20c765593ce2438a61a1766d41c8c86f59f8b 100644 (file)
--- a/src/CommandLine/Poppler.php
+++ b/src/CommandLine/Poppler.php
@@ -111,7 +111,7 @@ class Poppler
         return $res;
     }
 
-    public static function extractAreaFilehash($file, $page, $rect, $options)
+    public static function extractAreaFilehash($file, $page, $rect, $options): string
     {
         $f = Files::hashFileAttributes($file) . '||' . '++' . json_encode($rect) . '**' . json_encode($options) . '||' . $page . '!!';
         return hash('sha256', $f);