See the "Individual Merge Letters" item on fellow MVP Graham Mayor's website
at:
http://www.gmayor.com/individual_merge_letters.htm
If you are using Word XP or later, the "Add-in to Merge Letters to Separate
Files" that I have written and that can be downloaded from that site will
allow you to create each letter as a separate file with a filename taken
from a field in the data source with a minimum of fuss.
That addin also has the capability to produce a .pdf file for each letter
with the name taken from the field in the data source.

Signature
Hope this helps.
Please reply to the newsgroup unless you wish to avail yourself of my
services on a paid consulting basis.
Doug Robbins - Word MVP
>I am trying to merge a list of variables from a excel document into a PDF
> through word mail merge. I want these files to be exported with unique
> names
> determined by a field in the excel document. Is there any way to do this
> through word or through a VB macro?