Well, there's the ``multivalent'' tool. Although it too would have to be done after making the .pdf, it's far more amenable to scripting &c. than the full version of Adobe Acrobat.... http://multivalent.sourceforge.net/index.html William -- William Adams, publishing specialist voice - 717-731-6707 | Fax - 717-731-6708 www.atlis.com