Macs have the built-in ability to create PDFs from any application--be it Word, Excel, FirstClass or anything else--by printing it to PDF*. Here's how:
- Open the document.
- Choose "Print" from the File menu.
- In the dialog box that appears, click "PDF" (at the bottom left) and select "Save as PDF..."
- Name the file and save it where you can find it.
- There is not step 5.
* Note: Some applications have a built-in export or "share" function that also allow creation of a PDF. In these cases, there might be additional options available when using these functions rather than the Print > Save as PDF method.