doPDF "is a free PDF converter for both personal and commercial use. Using doPDF you can create searchable PDF files by selecting the "Print" command from virtually any application. With one click you can convert your Microsoft Excel, Word or PowerPoint documents or your emails and favorite web sites to PDF files."
doPDF installs itself as a virtual printer driver that will appear in your Printers and Faxes list. To create PDF files, you just have to print your documents.
doPDF doesn't require any 3rd party programs to create the PDF files. It also features customizable resolution, predefined page sizes, searchable PDFs and multilanguage support.