diff --git a/logPlus/mainwindowcurve.cpp b/logPlus/mainwindowcurve.cpp
index 9089f3b..55dcee7 100644
--- a/logPlus/mainwindowcurve.cpp
+++ b/logPlus/mainwindowcurve.cpp
@@ -2543,6 +2543,14 @@ bool MainWindowCurve::saveMultipageTiff(const QList<QImage> images, const QStrin
     return true;
 }
 
+void copyFile(const QString &sourcePath, const QString &destinationPath) {
+    if (QFile::copy(sourcePath, destinationPath)) {
+        qDebug() << "文件拷贝成功！";
+    } else {
+        qDebug() << "文件拷贝失败！";
+    }
+}
+
 //isbmp=0 to printer or pdf
 //     =1 to printer by use image
 //     =2 to tif by created this soft
@@ -2912,6 +2920,14 @@ void MainWindowCurve::_slotExport(QPrinter &printer, int IsBmp, QString pngName,
         saveMultipageTiff(images, filename); // 合并、保存为TIFF文件
         //        writeTiff(images[0], filename);//测试单个文件
 
+        if(pngName.contains(".tif"))
+        {
+            copyFile(filename, pngName);
+            //删除 tiff 中间文件
+            QDir ss(filename);
+            ss.remove(filename);
+        }
+        else
         {
             QImage img1(filename);
             if(!img1.isNull())