Here are the steps you need to follow to add images to your board.

Step 1. Go to the settings of your board.

Step 2. Select the "Enable image" feature.

Step 3. Create a new card by clicking on the "+" button, then click on the "image icon" to add your image.

Final Step. Now, you can click on the "Save" button to save your image.

Note: You can easily remove your image by clicking on the "Remove image" button.

Yes, you can hide and show the images again at any time by clicking on the "Hide image" and "Show image" buttons (see the image below.)