Preveiw button to invoke prePrint event without actual printing

Hi,

I have a form which changes a lot with the prePrint event.

Is there any way to preview the document without clicking on "print"?

I am looking for a button or checkbox which invokes the prePrint event without opening the Acrobat print settings.

A checkbox would be perfect because the user could preview the document and could uncheck the checkbox anytime in order to go back to the form.

Thanks in advance