today I tried the new Google Calendar service (http://www.google.com/calendar/) for the first time. I entered an event and clicked on the printer icon to print a calendar sheet. A PDF file was created on the fly. I saved this PDF file and opened it in Adobe Reader. I clicked File->Document Properties->Description and what did I see???
The PDF was created using iText, your favorite Java-PDF library hosted on SourceForge! This is GREAT!