I'm glad to answer your question. Graphic design is the most widely used field of Photoshop. Whether it is book covers, posters or posters, these printed materials usually need Photoshop software to process images. You can follow my steps and try to replace the photos.

Step 1: Open the ps software, click the menu above and find the "Open" option in "File";

Step 2, select the picture to be replaced and open it;

Step 3, select "Place" from "File" in the menu bar;

Step 4, find and select the picture to be replaced, and click the "Place" button;

Step 5, adjust the size and position of the placed picture to make it consistent with the size of the picture to be replaced;

Step 6, the photo was changed successfully.

I hope my answer can help you.