Is iText 5.4.2 open source?

Question

I would like to know whether iText 5.4.2 is a open source. I know it is described here well:

http://itextpdf.com/terms-of-use/index.php

But I am confused as the

Answer 1

AGPL stands for Affero GPL.

It basically says, when you want to sell a software product that includes iText or use iText in any commercial webservice, than you need to buy a license.

If you do an open source (with an approriate license) or private project, than you are fine and don't need to buy a license.