You don't "trap" them. You simply need to place the code in the right locations (the ones I described earlier) and they'll be automatically executed when those events occur.
Thanks Gilad D (try67), your last suggestions took me in the right direction. Also, just as you earlier posted, it's pretty straight forward to find where to place document level scripts in Acrobat Pro DC - just as you mentioned. It's different in the version X.
Here is the generic script I ended up modifying ....
function doMyscript() {
// Code goes here
}
// Call the function
doMyscript();
And here is the working script...
function HideSignatureFields()
{ this.getField("SupervisorSignature").display = display.hidden;
this.getField("GenCounselingStudentSignature").display = display.hidden;
this.getField("PDSignature").display = display.hidden;
this.getField("ValidateFormFeedback").display = display.hidden;
}
HideSignatureFields();
Thanks again!
Best, George