变更

app/Http/Controllers/Manager/OrdersController.php

@@ -1958,7 +1958,8 @@ class OrdersController extends CommonController
         }
         // 1. 创建临时文件路径
         $options = [
-            'format' => 'png',
+            'format' => 'jpg',
+            'quality' => 75,
             // 允许访问本地文件（解决Blocked access to file警告）
             'enable-local-file-access' => true,
         ];