>It is v1.1.4322. I do not know if it is the latest one.

The version indicates in the .NET reference project is 5.1.2. The file date was August 23rd, 2011.

>Do you have some sample code lying around that you could share with me?

In my framework, I have built a class to manipulate the PDF, change some values here and there, lookup for variables and so on. But, I can make a test later on tonight. Are you generating a very extensive report or even with just a simple set of data, it is not well designed?