SayCheese

Say Cheese is a completely free Android app that allows you to capture, edit, and share your visa or passport photos or photos for any type of documents (IDs, driver's license, etc.) in minimal steps.
You can make professional-looking visa photos and passport photos with your own comfort. Passport Photo ID Studio also allows you the flexibility to customize your passport photo sizes.

Features include:
1) Capture using camera visa or passport size photos that will automatically be saved to pre-selected photo sizes
2) OR import photos from gallery to make visa or passport photos
3) Say Cheese supports both rear and back-facing camera
4) General guidelines will be provided on screen before you create your visa passport photos
5) Select your passport photo size that corresponds to a list of countries available
6) OR customize your photo size
7) Zoom and crop your photo
8) Adjust brightness and contrast of photo
9) Preview your photo before you save

Remember while taking a good visa or passport photo:
1) Ensure that the background is well lit, white or off-white, and plain
2) Try to eliminate shadows that are caused by overhead lighting
3) Include the person's head (face including hairs) exactly in the face guide line provided on the screen
4) Minimize the distance between the person being photographed and the background to reduce shadows on the background
5) When using the front-facing camera, use both hands to hold your phone so that your shoulders will have equal distance from the camera
6) Look at the camera when taking your photo

Remember for cropping a good visa or passport photo:
1) Take the high-resolution picture or resolution should not be too low, at least should not be lower than 600px