1. Prepare the official seal to be cut first, and the clearer the better.

2. Click on the window and select the channel, as shown;

3, only the blue channel, and then copy, click on the reverse;

4. Load into the constituency;

5. Copy the shear layer;

6. Set the background color;

7. Erase black text with stamp and brush tools;

8. Copy the official seal to the place where it needs to be stamped, and adjust the external light to make it more realistic;