In Power BI, what is considered the principal printing unit for a report?

The principal printing unit for a report in Power BI is a page. This means that when you print or export a report, it is organized and formatted to fit onto pages, just like traditional documents. Each page can contain a variety of visual elements, such as charts, graphs, and tables, but the overall layout and flow are designed around the concept of pages.

While sections may refer to different parts of a report, they do not represent the final output unit when it comes to printing. Similarly, visuals are the individual elements that display data, and objects could refer to various elements within Power BI, but they do not define the main unit for printing purposes. Thus, recognizing that pages are the fundamental unit for report formatting and output is key to effectively utilizing Power BI for report generation.