Hello,
you need to use a custom javascript library like this one.
https://manuelstofer.github.io/pinchzoom/
I’ve created a little example application with this javascript library.
https://files.simplifier.io/f/2b86ab860c36456f8ddd/?dl=1
edit:
you can also create a extended widget from the image widget where you add this pinch functionality in the after rendering.
Enter the destination URL
Or link to existing content
