Start Photoshop and open the two images you need!
The second step is to click the image size pop-up modifier box to modify the width and height of the pixel. Pay attention to the constraint ratio in the red line! To change to a non proportional size, go to the hook! And then the size of the two pairs of pictures consistent!
The third step many JPG format of the map in photoshop8.0 locked, so double-click the background item in the layer, will pop up an option box, choose Good ~ the background into layers! (Similarly, the other picture does the same.) But notice in Photoshop by clicking on the picture to change the current edited picture, so change the other picture to click First.
Step Fourth Select the tool on the right side of the left sidebar! And then click on a picture to drag it to another picture! There should be two layers in the layer! Two pictures according to the size of the picture to the good ~ Press Save!Classification: