In printing or scanning, skew refers to the slight misalignment of a page or image, where the content is not perfectly vertical or horizontal. This can occur when a document is fed unevenly into a scanner or printer.
De-skewing is the digital process of detecting and correcting this misalignment, ensuring that the scanned or printed image is properly straightened. Correcting skew is important for maintaining readability, accuracy, and professional-quality output in both digital and printed materials.