After some research the following xml with some modifications may work
with abbyyocr in alfresco
http://www.intelliant.fr/en/ocr-transformers-context.xml
I'll check this once I am able to bring the alfresco down to test and
reload
It would be nice if Abbyyocr could be made to use the same file and
input and output for instance if the scanned file is a.pdf the
of=a.pdf and if=a.pdf would be nice