Illustrator :: Make White / Purple Lines Go Away With Exporting PDF?

I used trace to do a trace of my image. I then used live paint to paint chunks of it. When I hovered over each bit, it would come up with a thick pink line and would fill in that line. So all was going well, I got everything the colour I wanted it, etc. I tried to export my image to a PDF and the purple lines that were so useful to me when I was doing live paint still showed up, but showed up as a white outline. I read forums and tried everything-deselected the keep ability to edit in illustrator and create acrobat layers from top level layers. But every time I try to open it in preview on the mac, the purple lines are still there. I can "click off of them" within illustrator, ie-select somewhere else on the page and it makes them go away, but even if they aren't showing up when I save it, they still show up on preview. I can't print it out like it is now!