PDFCreator: convert any document to PDF or image formats

This software can convert most any document to a PDF document or, alternately, to image(s) of various formats. It installs a so-called virtual printer driver on your machine whereby a new printer appears in your PC’s printers list. To convert any document to PDF or image format simply print it using this virtual printer.
While there are many good PDF virtual printers are there, PDFCreator is my top pick because (a) it can create image documents as well as PDFs; (b) it does not require the seperate installation of Ghostscript, and (c) it is open source (in contrast to many of the others which have gone adware over the years).