diff --git a/app/scanner/mainwindow.cpp b/app/scanner/mainwindow.cpp
index d800bb08..593ce759 100644
--- a/app/scanner/mainwindow.cpp
+++ b/app/scanner/mainwindow.cpp
@@ -2862,6 +2862,10 @@ void MainWindow::on_act_autoCrop_triggered()
         return;
     }
 
+    HGUInt xDpi = 0;
+    HGUInt yDpi = 0;
+    HGBase_GetImageDpi(img, &xDpi, &yDpi);
+
     Dialog_ImgProc_AutoCrop dlg(this);
     if (dlg.exec())
     {
@@ -2916,6 +2920,7 @@ void MainWindow::on_act_autoCrop_triggered()
                 imgInfo.type, HGBASE_IMGORIGIN_TOP, &destImage);
             if (nullptr != destImage)
             {
+                HGBase_SetImageDpi(destImage, xDpi, yDpi);
                 m_view->addImage(destImage);
                 HGBase_DestroyImage(destImage);
                 m_modify = true;