Apps similar to Deskew include ScanTailor Advanced, which is free and open source. Other options are YASW (Yet Another Scan Wizard), DocScan and Book Scan Wizard. In total there are four PDF Editors like Deskew for Windows, Linux, iPhone and iPad.
Scan Tailor is an 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.
Download YASW for free. Yet Another Scan Wizard. YASW (Yet Another Scan Wizard) is an application used to correct images taken with a camera or scanner. It can be used to post process the scanning of a book.
France
EU
When you need a digital copy of some paper document to send out, but there is no flatbed scanner nearby, it can help you!
United Kingdom
A utility to help with Book scanning using cameras as a scanner. It will automate things such as cropping, rotating, fixing keystoning, fixing the DPI, and outputing it to tiff files that can be changed into PDF's or ebooks.
