Question: Is there a web based OCR engine that can make PDFs text searchable?

Answer: Yes, there is a web based OCR engine available from CVISION Technologies. CVISION has been in the file formatting and document capture industry since 1998. Their OCR software, the Maestro Recognition Server, is powered by the most accurate OCR engine in the market and is capable of delivering accuracy rates above 99%. CVISION also offers a free web based OCR engine on their website that can convert PDFs, TIFFs, and other file formats. There is no size limit imposed on file uploads, meaning you can OCR files regardless of their size.

To use the free online OCR engine from CVISION, go to:

http://www.cvisiontech.com/online-conversion/general/main.html