I have an idea that might work for you. It stopped our Boots, from getting on the kitchen table and it did not hurt him a bit. Well it might have hurt his feelings a tad, but he got over it.
We bought a package of three small mouse traps. And gathered up a bunch of newspapers.
Set the traps, (no food), in them is needed, as they need to just snap shut.
Then carefully lay a couple of layers of newspapers over top of the traps. Make sure the traps are covered well. This protects kitty's feet from getting caught in the traps when they snap.
When your cat jumps up on the newspapers and the mouse traps snap closed. Usually, it scares them enough that they will avoid that area again.
This works to keep cats and dogs, off the furniture as well.
