Thanks for the reply.
I've posted gedcoms several times already, and emailed some to relatives. I understand about gedcoms - that's why I was looking for a way to modify one.
I use PAF, and have several other programs. I think they will all privatize. And I have ViewGed, which will also privatize, and it has some parameter settings.
But I want to do the privatizing myself. In fact, what I want is to avoid over-privatizing, be privatizing out people who may be dead but I don't have their death date.
Unfortunately, putting in an arbitrary death date is a poor quality solution because it's false data. I considered using a date of Feb. 29th in an odd-numbered year to make it obvious that the date is wrong. But no matter how I choose to do it, I can't with the tools I have.