There are seven different form tools. Each tool is used to create the respective field type. To create a field, first select the tool for the kind of field to be created, and then drag the pointer on the page where you want to position the field. After creating a field, you can move the field by selecting the respective tool and dragging it around the page. You can size a field box by dragging any one of the corner handles in or out. If you need to change field attributes, double-click on the form field to access its properties.
The types of fields you can create in Nitro Pro include:
PDF form field attributes
Add & edit PDF multiple fields
Note: The Signature Field tool is accessed via the Secure and Sign ribbon tab, not in the Form Assistant mode.