David A. has a simple but time-saving method for filling out non-interactive forms in PDFpen. These are forms that don’t actually have built-in form fields to fill in. You have to use the Text tool to overlay text to fill out the form.
If you double-click the Text tool, it stays selected so that you can insert multiple text boxes, one after the other. But that strategy has its drawbacks:
My problem with double-clicking the Text tool is that I usually need the Select tool to fine-tune alignment after I enter text. So what I do is create one text box, fill it with some sample text, get the font settings I want and then copy that text box to the clipboard. Then I just stick with the Select tool, pointing and pasting wherever I want text and then editing and adjusting.
If you find yourself needing to switch between the Text tool and the Select tool often while filling out a form, this could save you time and mousing!