SketchyDraw is a free and open source OS X app that will allow you to create graphics using your Mac.
While using the SketchyDraw utility shapes can be created by selecting a tool from from the Tools panel and a desired vector format.
Here are some key features of "Sketchy Draw":
Windows and Panels:
· In addition to the document window, there are various panels and windows.
Object:
· Object creation is initiated by dragging the mouse. You can cut, copy and paste any object, even into other programs.
Command:
· By executing various commands from the main menu, then general image format or export or save the document. Modification of the text object is primarily done using the main menu.
Output formats:
· You can save your picture either as a SketchyDraw file or as PDF or TIFF, EPS, or SVG.