Changing the preview on WordPress can be a little daunting, but it’s not as difficult as it seems. The first step is to open up the WordPress admin area and go to the Settings menu.
On the left-hand side of the screen, you will see the Preview section. Here, you can change the preview image and the text that is displayed when someone clicks on the preview.
To change the preview image, click on the image that you want to use and select a new image from the drop-down menu. Then, type in a new text description and click on the Save button.
If you want to change the preview text, first click on the text that you want to change and then select a new text from the drop-down menu.