Understand the Tools
PDFpen provides a rich assortment of tools for modifying PDF documents. Learning the tools you have at your command is one of the first steps of taking control of PDFpen. You can access many of these tools in a variety of ways: from a toolbar, from menus, and from the keyboard. Which method you use may depend on what is most convenient for you, or it may be a matter of personal preference.
The tools at your beck and call fall into these general categories:
In addition to these tools, PDFpen provides an Inspector that you use to modify objects in a PDF, and a Library, where you can store graphics and ...