Ever wondered how to convert a Word document into PDF? Or wanted to share a PowerPoint presentation with a Linux user? You can do it very easily by using PDFCreator - an open source printing driver for Windows operating systems.
I personally use it to convert proprietary Microsoft multi-page TFF files, generated by MS Office scanning tools. I scan quite a lot of documents, and Microsoft Office Document Scanning is very convenient to use, but it is almost impossible to open the generated TIFF files in anything, but MS applications. However, by printing them into PDF, I can easily share them with anyone, and the size is not much different from the original, or sometimes even smaller.