Yes, there are improvements in the area of OCR - especially those related to exporting scanned images to other file formats such as (Word or Excel). Here are some related tutorials:
It is NOT improved. the ocr is integrated in "Optimized scanned pdf" window, but it does a very bad job. I tested 3 different docs. Non of the outputs is better than acrobot 9. In one case it applies OCR only in 2 first pages. It is not an upgrade but a downgrade. really disappointed.
Can you share an example of a file in which OCR in Acrobat X has not worked properly, and OCR in Acrobat 9 has? The algorithms are certainly improved in Acrobat X, and so is the optimization of content compression - it is now adaptive to the color space of the objects on a page - however no OCR system can ever be 100% correct all the time, given the variation in typefaces and quality of scans. It's why we have an OCR Suspects process.
You can choose to OCR a file automatically at the point of conversion to PDF, at capture from a scanner or at the point it's exported to other formats such as Word - or you can use the Recognize Text buttons on the Tools Pane to apply OCR to an existing image-based PDF file (or several at once).
i just tried the acrobat x ocr capabilities and it was very disappointing. acrobat x ocr is not very accurate.
also, acrobat x doesn't format or select paragraphs properly, because each line of text is given a paragraph break--which interrupts text flow. that means any copied paragraph text from acrobat x will require a lot of manual reformatting.
any chance acrobat can use the abbyy finereader ocr engine in the future or as a plugin? finereader ocr is virtually perfect in ocr accuracy. finereader also handles paragraph text flow the way it should be.