diff --git a/app/scanner/mainwindow.cpp b/app/scanner/mainwindow.cpp
index f119cea2..28cfe793 100644
--- a/app/scanner/mainwindow.cpp
+++ b/app/scanner/mainwindow.cpp
@@ -3253,21 +3253,24 @@ void MainWindow::on_act_clearRoller_triggered()
 
 void MainWindow::on_act_help_triggered()
 {
+    QString filename;
 #if defined(HG_CMP_MSC)
     #if defined(OEM_HANWANG)
-        QString filename = QApplication::applicationDirPath() + "/HanvonScan_App_Help_manual.pdf";
+        filename = QApplication::applicationDirPath() + "/HanvonScan_App_Help_manual.pdf";
     #elif defined(OEM_LISICHENG)
-        QString filename = QApplication::applicationDirPath() + "/LanxumScan_App_Help_manual.pdf";
+        filename = QApplication::applicationDirPath() + "/LanxumScan_App_Help_manual.pdf";
     #elif defined(OEM_CANGTIAN)
-        QString filename = QApplication::applicationDirPath() + "/CumtennScan_App_Help_manual.pdf";
+        filename = QApplication::applicationDirPath() + "/CumtennScan_App_Help_manual.pdf";
     #elif defined(OEM_ZHONGJING)
-        QString filename = QApplication::applicationDirPath() + "/MicrotekScan_App_Help_manual.pdf";
+        filename = QApplication::applicationDirPath() + "/MicrotekScan_App_Help_manual.pdf";
+        if (m_currLang == "english")
+            filename = QApplication::applicationDirPath() + "/MicrotekScan_App_Help_manual_EN.pdf";
     #elif defined(OEM_ZIGUANG)
-        QString filename = QApplication::applicationDirPath() + "/UniScan_App_Help_manual.pdf";
+        filename = QApplication::applicationDirPath() + "/UniScan_App_Help_manual.pdf";
     #elif defined(OEM_NEUTRAL)
-        QString filename = QApplication::applicationDirPath() + "/HGScan_App_Help_manual.pdf";
+        filename = QApplication::applicationDirPath() + "/HGScan_App_Help_manual.pdf";
     #else
-        QString filename = QApplication::applicationDirPath() +  "/HuaGoScan_App_Help_manual.pdf";
+        filename = QApplication::applicationDirPath() +  "/HuaGoScan_App_Help_manual.pdf";
     #endif
 #else
     QString filename;
@@ -3293,6 +3296,8 @@ void MainWindow::on_act_help_triggered()
         filename = QApplication::applicationDirPath() + "/../../entries/help/CumtennScan_App_Help_manual.pdf";
 #elif defined(OEM_ZHONGJING)
         filename = QApplication::applicationDirPath() + "/../../entries/help/MicrotekScan_App_Help_manual.pdf";
+        if (m_currLang == "english")
+            filename = QApplication::applicationDirPath() + "/../../entries/help/MicrotekScan_App_Help_manual_EN.pdf";
 #elif defined(OEM_ZIGUANG)
         filename = QApplication::applicationDirPath() + "/../../entries/help/UniScan_App_Help_manual.pdf";
 #elif defined(OEM_NEUTRAL)
@@ -3311,6 +3316,8 @@ void MainWindow::on_act_help_triggered()
         filename = QApplication::applicationDirPath() + "/../doc/CumtennScan_App_Help_manual.pdf";
 #elif defined(OEM_ZHONGJING)
         filename = QApplication::applicationDirPath() + "/../doc/MicrotekScan_App_Help_manual.pdf";
+        if (m_currLang == "english")
+            filename = QApplication::applicationDirPath() + "/../doc/MicrotekScan_App_Help_manual_EN.pdf";
 #elif defined(OEM_ZIGUANG)
         filename = QApplication::applicationDirPath() + "/../doc/UniScan_App_Help_manual.pdf";
 #elif defined(OEM_NEUTRAL)
diff --git a/doc/scanner/DocWizardEX_App_Help_manual_EN.pdf b/doc/scanner/MicrotekScan_App_Help_manual_EN.pdf
similarity index 100%
rename from doc/scanner/DocWizardEX_App_Help_manual_EN.pdf
rename to doc/scanner/MicrotekScan_App_Help_manual_EN.pdf
diff --git a/doc/scanner/DocWizardEX_ScanSettings_Help_manual_EN.pdf b/doc/scanner/MicrotekScan_scanSettings_Help_manual_EN.pdf
similarity index 100%
rename from doc/scanner/DocWizardEX_ScanSettings_Help_manual_EN.pdf
rename to doc/scanner/MicrotekScan_scanSettings_Help_manual_EN.pdf