Instead of buying expensive vector drawing software, Keynote can be used as a simple but great vector drawing tool. The problem is you can only export entire slides as images from the File menu and there will be a white background. There is no obvious way of exporting just the vector art to an image file. Fortunately there is a solution. Use the following method to extract just your vector art creation to a
.png file with alpha transparency.
- Create a vector-based drawing.
- Drag and select the entire vector drawing you are going to export.
- Choose Edit » Copy from the menus.
- Open Preview.app.
- In Preview choose File » New from Clipboard.
- The vector drawing will then appear with a transparent background, ready to be exported as a PNG.
[
crarko adds: It seems like a quick, cheap way to go the job. Probably not for all situations.]