Why is the PNG format picture imported into the concert opaque? Put it in overlapping tracks and still have a white background! , ask the master to answer! ! ! ! !

Your picture is not a real picture in png format, but it is saved in png format during storage, and there is no transparent channel. You can use a mask to cut off the white background, but if the main picture has a white tone, the effect may not be very good. You can also use ps to remove the background and save it in png format.