A. To ensure proper head and chin alignment, use a ruler or a measuring tape to measure the distance from the chin to the top of the head. Make sure this distance is within the required specifications for passport photos. You can also use a mirror to check your alignment before taking the photo. If the app allows, use the grid feature to help align your head properly in the frame.

B. Consider using a reference image of a compliant passport photo as a guide. Place it next to your camera or phone to ensure that your head and chin are aligned similarly. This can help you adjust your position before capturing the photo.