How do I disable right-click on Squarespace?

While disabling right-click isn't a true security measure (determined users can always bypass it), it does discourage casual image downloading. Add a small script to your site's code injection.

This approach uses the contextmenu event listener to prevent the default right-click behavior. Note that this affects all right-click functionality including text selection menus, so use it sparingly.

<script>
document.addEventListener('contextmenu', function(e) {
  e.preventDefault();
});
</script>

/* Optional: also prevent drag on images */
img {
  -webkit-user-drag: none;
  user-select: none;
  pointer-events: none;
}