Pentaho Report Designer is a sophisticated report creation tool that you can use standalone, or as part of the larger Pentaho BI Suite. It enables professionals to create highly detailed, "pixel-perfect" reports based on adequately prepared data from virtually any data source.
Report Designer is not the only way to create reports with Pentaho software. Through the BI Server's Web-based Pentaho User Console you can also use the Interactive Reporting interface, or you can integrate the Pentaho Reporting engine (on which Report Designer is built) into your own software. If you're an XML guru, you could also use Design Studio to create a report by hand via an action sequence.
This user guide covers all of the major Report Designer features and functions, from adding a data source to working with conditional formatting and formulas. You can read it cover-to-cover to attain a reasonably comprehensive Report Designer education, or you can use it strictly as a reference to consult when you run into an operational challenge.