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The PRO-Version of PDF XChange Viewer is my favorite OCR-tool for converting not text-searchable pdf-files in text-searchable pdf-files. But like all very good OCR-tools it is not free, the price is 29 €:
http://www.tracker-software.com/product/pdf-xchange-viewer
I like very much, that i can use the PRO-Version of PDF XChange Viewer as a portable version in difference to ABBYY FineReader, which must be installed with admin rights.
ABBYY FineReader is the second of my two favorite OCR-tools for converting not text-searchable pdf-files in text-searchable pdf-files.
Until May 2012 I have not found any free application able to convert not text-searchable pdf-files in text-searchable pdf-files.
Because I need this function nearly every day, ABBYY FineReader has with about 38 € for the penultimate version ( Version 9 prof.) a very good value for money, if I need the scanning-function+OCR-function.
It is not necessary to buy the expensive newest version of ABBYY Finereader, which costs more than €100.
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