Photomontage is the process and result of making a composite photograph by cutting and joining a number of other photographs and 3D models.

Thus it is possible to integrate into the photo a new building, a 3D object or to edit an existing one and thus define the final appearance or impact on the environment before the actual start of construction work. Photomontage are useful for designers, as well as for marketing projects before they are finished.

Their usefulness and impact depends on the right choice of the pictures (image position, composition, lighting conditions, etc.) and objects to be modified.