Macro which will run if doc goes to more than one page

I have a document template which may or may not be two or more pages
long but in some case only 1. What I want to do is create a macro
that will show text eg 'Continued on next page ...) only if the
document goes to page 2 and beyond. I can't do it with a macro prompt
button because in the template there is only one page. I'm not
experience enough to write code such as "if doc pages are more than 1
then .... etc etc. Can anyone help?

thanks

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