CutePDF - (Free)
CutePDF Writer helps to create PDF documents by creating a virtual printer to which the files to print are redirect.
Cute PDF Writer is a software utility for creating PDF files. It installs as a virtual printer, to generate PDF from any application that can print. The user can take any printable Windows file and print it with the virtual printer (including graphics, images and photos). The result will be saved with the name and directory of users choice in PDF. The thumbnails will be automatically created.
The software does not include PostScript / PDF converter.