iCalamus is the publisher for OS X – light as a feather.
You can use iCalamus for free. The unregistered version offers a lot. If you want to get even more power, for 129.00 EUR you get a powerful modern DTP program which helps you publish your ideas fast and easily.
Last version with PGB output options (except upload)
iCalamus v2.10 requires OS X v 10.9 (Mavericks) or later.
NEW: Supporting OS X 10.11 (El Capitan)!
NOT supporting macOS 10.12 (Sierra)!
(126637 kB, Built 2018-11-13)