Preview your form design as you work by using the Preview PDF tab. When you preview a form design, LiveCycle Designer ES renders your form as a PDF file. See To preview and test forms in the Preview PDF tab.You can test a form using sample data. Testing the form with sample data ensures that data and fields map and that repeating subforms appear as expected. You can automatically generate sample data to preview and test your form instead of creating a sample data file. If your form contains repeating subforms or subform sets, you can specify the number of times the data will be repeated when you preview the form. See To automatically generate sample data to preview your form.You can also preview how your form will print by generating sample data to print with the form. If the form contains repeating subforms or subform sets, you can specify the number of times the data will be repeated when you print the form. See To print a form with sample data.