Ask people coming to see you to totally ignore the puppy -- no petting and no eye contact until they have been in the house and the dog has settled down from his excitement. Then, he can be called to that person and petted. If he still wants to jump, have that person push him away, no eye contact and no petting, until he clams down again. This reinforces that a calm, submissive state is the only one that will get him positive attention. Any attention -- good or bad-- reinforces that jumping gets him attention. Also, work with him on sit-stay. I have an English springer (known by that name for a reason!) who used to jump on people. I worked with her on sit-stay at a position about 6 feet from the front door, at the end of my hall runner. I do not open the door until she is in position, sitting and staying. If she breaks sit-stay, I ask the person outside to wait until she gets into sit-stay again. It generally only takes one time.