Use this option when you need the person in the photo looking in the other direction, or you need the top of the image to be the bottom. Select Tools → Transform Tools → Flip from the main menu, or use the button on the toolbox. After selecting the flip tool from the toolbox, click inside the canvas. Controls in the Tool Options dockable let you switch between Horizontal and Vertical modes.

从工具箱中选择翻转工具后，在画布内部单击。该工具水平翻转图像。使用选项对话框在水平和竖直之间切换。如果它尚未显示在工具箱下的停靠栏中，请双击工具箱按钮。您还可以使用Ctrl键在水平和竖直之间切换。

在下图中，展示了所有可能的翻转：