Answer
4/0 is a printing term that means single-sided printing, while 4/4 means double-sided printing. The 4 is equivalent to full-color printing using a 4-color, CMYK printing process. 0 is equivalent to no printing.
We offer 4/4 printing for many of our digital offset marketing materials, allowing you to create vibrant, double-sided business cards, brochures, postcards, and more.