see inside. there is something called OCR online.

來源: 於 2013-09-17 11:03:01 [舊帖] [給我悄悄話] 本文已被閱讀：次

Otherwise, Acrobat is the best you normally get:

http://www.mediabistro.com/10000words/rip-and-read-6-ocr-tools-put-to-the-test_b2524

I tried Acrobat before and it is almost perfect.