The range of tools available in Preview is pretty good including a rectangular, elliptical, lasso and smart lasso selector that allow you to cut out objects or items in images. The smart lasso for example can automatically detect borders in images as you guide it around thus allowing you to isolate or edit specific objects. One other neat feature is the ability to add your signature to a document or image using your Trackpad or via your Mac’s iSight camera. Just click on the signature symbol to automatically open the signature tool and select whether you want to add a signature via Trackpad or iSight. Meanwhile the Sketch tool allows you to draw freehand lines and spray-paint colors and the shapes tool allows you to add rectangles, lines, circles and ovals. If you draw shapes but haven’t got a steady hand, Preview will even adjust standard shapes such as ovals to make them rounder and more accurate.
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