My question is this, I'm making a system, I'm using the ItextPDF library, what happens is this, when I'm compiling my project from NeatBeans, when I create the document it works, I create it and I can open it, But if I run the jar of my project when I want to do the same thing, it does not work anymore, I get a mistake. I know it's weird, but could you please help me solve it?