Starting with Acrobat 9, Adobe engineers added a new flavor of OCR called ClearScan.
The advantages of the ClearScan over Searchable Image OCR are both in size and clarity. The biggest innovation of Clearscan is that:
ClearScan does not replace the font with your system fonts. Rather, a custom font it is created to match the visual appearance of the pixels.1
Are there other products than Adobe's that support Clearscan or similar products that use a custom font that is created to match the visual appearance of the pixels?