Jon Gosselin NOT Pressing Charges After Gun Incident with Photog

9/22/2013 9:12 AM PDT

Jon Gosselin says he will NOT press charges against the paparazzo who was allegedly trespassing on his lawn when he fired a warning shot from his gun ... TMZ has learned.

Jon tells us the photog learned her lesson Friday -- and after scaring the life out of her for following him onto private property to take photos ... he thinks she got the hint.

"The message that I take my family's privacy seriously was sent loud and clear" says JG adding, "I trust that she will respect that in the future."

As we previously reported -- the photog reported the incident to police, but decided not to pursue charges against Jon for firing his gun ... because an investigation would likely have lead to HER being charged with trespassing.