I have this one in versions 6 & 9, not bad for "freebies", 9 also includes a very handy screen reader. However, the OCR included with the sort-of-freeware PDFxchange viewer and it's editor version seem to be just as good as Abbyy - they all make errors which are hard to correct, the penalty we incur by refusing to pay for this stuff....cut down Abbyy OCR program
The PDFxchange offerings are also available in portable versions.
Bob