How to Print all contacts from imac

Open the Contacts app on the Mac, click on a contact, go to the Edit menu an click Select All, go to the File menu and click Print, in the Print dialog change the "Style" to "Lists" and then. select the Attributes you want included and click the Print button.

Another option that I forgot to mention is to open both the Contacts app and the Numbers app, select all contacts and then drag them to the Numbers window.

That can give you some different flexibility in how you layout and print the contacts.

I exported as pdf, then printed the pdf.