I have created a custom tab bar with some of my own images for the individual tabs. However, the images are far too large for the tabs. Is there any way I can resize these images either programatically or through Xcode's own utilities so that they will be in the correct dimensions for the tabs? Many thanks.
Xcode does not allow to resize images. I think it is better to resize image manually, not programmatically. This link describes the iOS icon standard sizes. You can easily resize images with standard Preview.app.