I have some suggestions regarding the viewer control of the PDFCreator
1. It would be great if you could implement a hand to grab the document to scroll up and down (as seen in Adobe Reader)
2. The performance when zooming could be improved
3. There should be an option to change the background color of the viewer (currently defaulted to gray)
4. The size of the slider in the scroll bar should be relative to the total length of the document. For example, when only half the document is shown on screen, the slider should be half the size of the entire scroll bar.