You are using a free version of a paid-for product: you need to contact the manufacturers (
C# / VB.NET PDF component - GemBox.Pdf[
^]) to find out if the free version has quality restrictions as well as page count restrictions.
We don;t provide tech support for paid for components: that's up to the creators (and a demonstration of their support quality if you decide to upgrade to the paid version - if their support is cr@p before you buy, how likely is it that it'll improve when they've already got your money?)