what software used for ocr on linux

[Sam Hartman]

Is there a way to get tesseract or openocr or anything open-source to
deal with rotations?
The commercial software along with anything targeted for the blind tends
to 

1) deal with 90 or 180-degree rotaions--I put the book down on the glass
in the wrong orientation

and

2) Deal with small rotations (it wasn't perfectly aligned) relatively
well.

I find these features really important when scanning things myself.
Less so when OCRing images from the web etc.