Implemented missing unifiSsid check for PDF exports

utils/size.js

@@ -1,8 +1,13 @@
+/**
+ * Import own modules
+ */
+const variables = require('../modules/variables');
+
 /**
  * Util function to calculate paper size based on voucher data
  */
 module.exports = (voucher) => {
-    let base = 375;
+    let base = variables.unifiSsid !== '' ? 375 : 260;
 
     if(voucher.qos_usage_quota) {
         base += 10;