--- install/update_084_085.php
+++ install/update_084_085.php
@@ -1603,7 +1603,7 @@
    // $migration->addField("glpi_users", 'use_unicodefont', "int(11) DEFAULT NULL");
    Config::deleteConfigurationValues('core', ['use_unicodefont']);
    $migration->dropField("glpi_users", 'use_unicodefont');
-   Config::setConfigurationValues('core', ['pdffont' => 'helvetica']);
+   Config::setConfigurationValues('core', ['pdffont' => 'dejavusans']);
    $migration->addField("glpi_users", 'pdffont', "string");
 
    $migration->addField("glpi_users", 'picture', "string");


--- inc/toolbox.class.php
+++ inc/toolbox.class.php
@@ -2411,6 +2411,7 @@
       if ($fp) {
          $fw = fwrite($fp, $content);
          fclose($fp);
+         chmod($name, 0660);
          if (function_exists('opcache_invalidate')) {
             /* Invalidate Zend OPcache to ensure saved version used */
             opcache_invalidate($name, true);