When you print your new PDF, the file format will vary, which will also change the font. Why can't I make a PDF from Word.docx? Word PDF Converter can help you convert Word to PDF document to PDF. This tool is designed for Microsoft Windows operating system (Windows 9x, Me, 2000, XP, Vista, 7, 8 and so on). If you use Microsoft Office software, the Word PDF Converter is not designed for that operating system because that office does not allow you to save to PDF.