superimpose
verb [ T ] uk/ˌsuː.pə.rɪmˈpəʊz/ us/ˌsuː.pɚ.ɪmˈpoʊz/
使（尤指图片、文字等）叠加，将…放在他物之上
to put especially a picture, words, etc. on top of something else, especially another picture, words, etc., so that what is in the lower position can still be seen, heard, etc.
The book cover had a picture of a dove superimposed on a battle scene. 这本书封面上的战争画面中添加了一只和平鸽。