Scan Tailor is free interactive post-processing tool for scanned pages. It performs operations such as page splitting, deskewing, adding/removing borders, and others. You give it raw scans, and you get pages ready to be printed or assembled into a PDF or DJVU file. Scanning, optical character recognition, and assembling multi-page documents are out of scope of this project.
for downloading and reading brief description please use following link: http://scantailor.sourceforge.net/?q=en/about
video tutorial in English available from here: http://vimeo.com/12524529