はがきデザインキット

はがきデザインキット (Hagaki Design Kit) is a Japanese postcard design and printing utility for macOS. It provides templates and tools for creating and printing postcards, New Year's greeting cards (nengajou), and other seasonal greeting cards commonly sent in Japan. The app features an extensive library of pre-designed templates, customization options for adding photos and text, and integration with postal services for printing and delivery. It is primarily used by Japanese users who wish to create traditional greeting cards without needing graphic design skills.