Here’s some software that may be helpful. In Mac OS X, you can print probably about anything on your screen as a PDF file (e.g., Word document, HTML page, etc). If you have a variety of these documents or if maybe you want to combine one of your documents with a PDF that you downloaded, this program allows you to combine PDFs.
Monkeybread Software - Freeware - Combine PDFs 1.0
convert this post to pdf.