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Formats for Icon Images

The ICNS format is generally best for icons that will be used in an application. You should use this if you are designing an application or document icon. If you are making icons to be used by consumers to customize icons on their system, then an icon for a file is a better choice. This way, you can save the icon on a folder and users can copy and paste that icon onto a folder or file on their own system. If you are making a set of icons, you can use the iContainer format to save a set of icons together that can be opened in Pixadex or CandyBar.

Related Topics

Designing Image for Icons

Resolution Independence for Icon Images