Нехватка памяти при распознавании PDF

[suntory]

никакой векторный шрифт не создается.

Все-таки создается
Lorraine Press: From a picture to a font — OCR in Acrobat 9

How does ClearScan work?
ClearScan works by turning the images which represent text characters on the page into smoothed vector outlines. Each character on the page is compared and all matching characters are replaced with a an outline character:

Original ClearScan

800% View in Acrobat
300 dpi scan