I created a fill using vector lines that looks like a quilted look. I arranged the fill in the object to be centered. However, when I either open the AI. file in acrobat or export as png or jpeg the fill vector lines have shifted and are no longer centered. I have tried grouping the layers and locking the layers. THe only thing that seams to work is rasterizing, which I would rather not do in case I need to edit later. Plus, even when I rasterize in high 300dpi the lines don't look clear.