I purchased a small collection of Kennedy photographs, most were obvious copies with the signature at the bottom. However, one was the actual photo on a white board with a wet signature at the bottom. To me it looked like what you would do in order to make the copies that would be handed out to White House guests. I realize it's very unlikely, and probably a secretary, but I figure I better get some opinions if its worth sending out for certification.
I did find this on the net and thought signature looked similar. https://myauctionfinds.com/2013/10/18/indian-reader-asks-about-lett...
This letter you linked to is 100% autopen. It’s a common JFK autopen style. There are lots of those letters out there.
The one you present I’m almost certain is an autopen as well or a preprint. However, you say it’s live ink so I believe it’s an autopen. I can’t say for 100% it’s an autopen, but that’s my belief.
its definitely not a preprint, so I guess that means auto pen. I thought this one looked similar also https://www.icollector.com/John-F-Kennedy-1963-Signed-Photograph-In...
I knew I was grasping at straws. I appreciate you taking the time.
The icollector one is definitely authentic. There are some similarities, but I still think your OP is probably autopen.
You might check with member Herman Darvick. He’s an authority on presidential autographs. And see what he thinks.