You can clone an image, or part of an image onto a separate image in Photoshop using the Clone Tool. Here’s how to do it;
1. Make sure that you have two images open – the one you want to clone from and the one you want to clone to.
2. Select the Clone Tool (S) and Alt + Click (windows) or Option + Click (mac) on the first image to select a sample point.
3. Switch over to image you want to clone onto and start painting.