One of the more tedious aspects of working with interface builder is using custom fonts, but unfortunately you can’t use these fonts in interface builder.
Cedric Luthi has created a project called FontReplacer to solve this problem and explains this problem and exactly how FontReplacer solves this problem in the Readme:
If your project contains nibs with a lot of labels, it becomes tedious to setup an outlet for every label and change the font in the code for each outlet. Instead choose a font that you won’t be using anywhere in your app, e.g. Arial and use it in Interface Builder. Then create a mapping from Arial to your custom font, e.g. Caviar Dreams and let FontReplacer handle the replacement.
You simply need to add a key to your Info.plist file or NSDictionary and include the UIFont categories within your apps.
You can find FontReplacer on Github here with usage instructions and an example.
A very useful set of categories for working with custom fonts.
Original article: Handy UIFont Categories Allowing Custom Font Usage In Interface Builder
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