Hi, it happens quite often that dogs jump onto people. To give you some advice i would need some more information.
Does she only jump onto guests or also onto her human "family members"?
If she does it with you as well: how do you react?
What do you do generally when you leave the house/when you come back?
Every info helps me to understand your personal situation.
So if you could provide me with that i will try to tell you what i think about it and what you could do to change the situation.
All the best from Vienna,
Michael