As the number of positions in your organization grows beyond fifty or so, it becomes difficult to print your org chart on a single page and still be able to read the text, no matter how tightly you format it. You can print the chart on a larger sheet of paper, or on multiple sheets, but this becomes cumbersome.
The size of your online org chart is not a problem. You can view it at any magnification. Zoom out to view the entire chart. Zoom in to read the details. You can scroll different parts of the chart into view.