>Has Anyone out there, ever bothered to hack into pdf files, to extract things like title, subject, keywords from pdf files, in order to create a database from those fields. ? My first thinking would be to use filetostr and the at or atc() function to extract this out. any other thoughts. or has someone already written this.?

There is a free utiliti included with Aladdin Ghistscript
which converts pdf files to plain text.

See http://www.cs.wisc.edu/~ghost/