First, prepare a signature map and a background map. Click on the ps software, you can drag two pictures into the ps software by dragging and dropping, or you can select a file in the ps software and find the path of the picture to open the picture.

After opening the signed picture, use the magic wand tool in ps software to load the signature into the selection area, and use ctrl+j to copy the signature layers respectively. Then use the mobile tool in ps software to move the signature layer to the second background image, and use the shortcut key CTRL+T to adjust the signature size.

The specific operation steps are as follows:

1. When the computer starts, click to open the PS software.

2. After opening the PS software, drag the signature image into the PS software to open it.

3. After opening the signature image, use the magic wand tool or the channel tool to load the signature into the selected content.

4. The signature loaded in the selected content is copied separately by ctrl+j shortcut key.

5. Open another picture in ps software.

6. Go back to the signed picture, drag the signature to another picture with the mobile tool, drag the signature to it, and then press the shortcut key ctrl+t to adjust the size of the signature.

7. After resizing and repositioning, press Enter to confirm.