Where did you place this code?
Sorry, frustration effect my memory.
I am trying to recode the Action to a Folder Level Script.
Is it placed in a function? How is it triggered?
Is it your goal that this code runs whenever any document is opened?
Or, just tell them to press the darn button, you've got better things to do.
In any case, you should first do some sort of check to make sure this wasn't already done to the PDF it's dealing with.
Also, be aware that app.activeDocs only includes files that have been disclosed, as explained in more detail in the documentation: http://livedocs.adobe.com/acrobat_sdk/9.1/Acrobat9_1_HTMLHelp/JS_API_AcroJS.88.105.html
Using app.active docs in the way it appears you are is not likely the best approach anyway, but it's hard to say without knowing more about the workflow you're using. The more details you provide, starting wit the initial document creation and ending with the recalcitrant users, the better.