The holes will show....I've had customers bring "bad" embroideries to me to remove....get a magnafyed glass and pick from the back...it will take a long time but if you want it off thats what you have to do,,,,,then you maybe can have something else put on the outside to disguise the needle holes....good luck !!! get a really good seam ripper too...doing it from the back will help with less damage showing.....