On the FONT tab you can set the default font for text objects when adding new text objects.
The DEFAULT FONT drop down will allow you to select an installed font on your system to use with PDFtypewriter. The default value is Arial.
The DEFAULT SIZE drop down will allow you to set the default text size. Please note that this is NOT points, but pixels. When a PDF is opened at 100 DPI, there are 100 pixels to one inch. In PDFtypewriter, 12 is NOT the same as 12 points in Microsoft® Word®. The font size also varies by the dpi that you opened the PDF with. So if you opened it with 200 dpi, 12 will be the same as 6 in a PDF opened at 100 dpi. The default size is 25.
The DEFAULT COLOR drop down will allow you to select a color for text to default to with it is first added. The default color is black.
The STYLE OPTIONS will allow you to set BOLD, ITALICS, UNDERLINE, and STRIKETHROUGH as default styles to the text. By default, they are all unselected.
The SAMPLE TEXT BOX will allow you to preview approximately what the text will look like in PDFtypewriter.
Also see Advanced Tab