"Photo Background Changer" ( https://play.google.com/store/apps/details?id=com.bhima.photobackground ) is an app that allows you to easily change the background of any photo with custom images. Not only that, but the app also includes many other tools to move the image, rotate it, zoom in and out the image plus cropping it to a specific size if needed. Your original photo wonÔÇÖt be affected as the app always creates a new one when saved, thus you can toy around with any photo without affecting the original.
You can import photos from your gallery to change their background or use the camera to obtain a new one and create stunning photos. When you're done, save & share these photos/images with your loved ones & friends.