To convert a Word document to PDF, users can utilize the built-in "Save as..." feature in Microsoft Word, which is available in recent versions. For those using Windows 10 and above, the "Print to PDF" option is also integrated into the operating system. LibreOffice offers a similar "Print to PDF" functionality. Additionally, CutePDF Writer is a free software option recommended for PDF conversion. PrimoPDF was mentioned as a preferred tool in earlier Windows versions, but newer solutions are now widely available and convenient.