The easiest way to save a demo image is to click/hold/drag/drop the image to the convenience folder you created, or any other location on your device that you prefer.
Windows Operating System Devices:
Right click the demo image, "Save As" to the convenience folder you created, or any other location on your device that you prefer.
Cell Phones:
Touch and hold the demo image until the pop-up menu with saving options appears. Select how and where you prefer to save.