Thanks for confirming that AmyUni has the necessary features to combine the files. It looks like a pretty full-featured product.

I had envisioned offering the user the ability to choose the documents, designate the order in which the pages appear, and choose the destination -- print, fax or email--from within a VFP form. The PDF processing would then occur largely without UI. Preview should be an option for any destination but wouldn't necessarily be required. Can the AmyUni features work "behind the scenes" or do they require a UI?