diff --git a/app/aboutdialog.cpp b/app/aboutdialog.cpp
index e31cb63..f51e056 100644
--- a/app/aboutdialog.cpp
+++ b/app/aboutdialog.cpp
@@ -41,6 +41,9 @@ AboutDialog::AboutDialog(QWidget *parent)
         QStringLiteral("<li><b>%1</b>:<br/>%2</li>")
                 .arg(QCoreApplication::translate("MainWindow", "Protected mode"))
                 .arg(tr("Avoid close window accidentally. (eg. by double clicking the window)")),
+        QStringLiteral("<li><b>%1</b>:<br/>%2</li>")
+                .arg(QCoreApplication::translate("MainWindow", "Keep transformation"))
+                .arg(tr("Avoid resetting the zoom/rotation/flip state that was applied to the image view when switching between images.")),
         QStringLiteral("</ul>")
     };
 
diff --git a/app/actionmanager.cpp b/app/actionmanager.cpp
index 0bfeb48..7795cfa 100644
--- a/app/actionmanager.cpp
+++ b/app/actionmanager.cpp
@@ -105,7 +105,7 @@ void ActionManager::retranslateUi(MainWindow *mainWindow)
     actionPaste->setText(QCoreApplication::translate("MainWindow", "&Paste", nullptr));
     actionToggleStayOnTop->setText(QCoreApplication::translate("MainWindow", "Stay on top", nullptr));
     actionToggleProtectMode->setText(QCoreApplication::translate("MainWindow", "Protected mode", nullptr));
-    actionToggleAvoidResetTransform->setText("Avoid reset transform"); // TODO: what should it called?
+    actionToggleAvoidResetTransform->setText(QCoreApplication::translate("MainWindow", "Keep transformation", "The 'transformation' means the flip/rotation status that currently applied to the image"));
     actionSettings->setText(QCoreApplication::translate("MainWindow", "Configure...", nullptr));
     actionHelp->setText(QCoreApplication::translate("MainWindow", "Help", nullptr));
 #ifdef Q_OS_WIN
diff --git a/app/mainwindow.cpp b/app/mainwindow.cpp
index 26e07c1..496c0b6 100644
--- a/app/mainwindow.cpp
+++ b/app/mainwindow.cpp
@@ -485,9 +485,7 @@ void MainWindow::contextMenuEvent(QContextMenuEvent *event)
     menu->addSeparator();
     menu->addAction(stayOnTopMode);
     menu->addAction(protectedMode);
-#if 0
     menu->addAction(avoidResetTransform);
-#endif // 0
     menu->addSeparator();
     menu->addAction(toggleSettings);
     menu->addAction(helpAction);