Please excuse the 'Carry On' comedic title, just a quick reminder really.
I spoke today with someone using Acrobat but wondering how to convert a large number of existing documents, both PDF and Word into Accessible PDF. I believe he had almost got to the point of looking for some server based solution, when I reminded him of the batch processing commands in Acrobat professional.
Just look under
Advanced >> Documenbt Processing >> Batch Processing
Here you can easily create batch jobs that encapsulate many/all of the major commads that are available from the Acrobat menu system. Give it a try, it's ludicroulsly easy!