close document action() level in pdf javascript

Question

I am trying to show an alert when user close the document, i added this code to Tools>Javascript> Set document action>document will close

I am trying to show this alert app.alert("this document will close, have a nice day"); in adobe acrobat javascript

but when i try to close the document, the alert is not working!.

Answer 1

Apparently the action close will not work unless you did not save your changes in the document.