It makes no difference. Even if he did all he would be doing is exercising his constitutional prerogatives.
He's thinking this way because he and his family are the objects of a witch hunt. When Hillary and her cronies and Lois Lerner aren't the objects of investigations by a special counsel there can be no other conclusion. You can throw in Loretta Lynch as well.
He won't pardon himself I don't think. If things came to that, which they won't because he's done nothing wrong, he would work out an arrangement for Pence to pardon him after he resigned.
The remedy if Trump were to abuse his unlimited power to pardon and yes, I think it would even include himself as the pardoning power given the president is unlimited, would be to impeach him and remove him from office.
So you and all the other little libtards who are getting the vapors over what Trump might do with the power that all presidents have had and I think most if not all have exercised since the founding of the republic can calm down, sit down and shut up!