Hi, I have an issue with PDFs that have been saved out of Adobe Illustrator CS5 (yes, I know, old) not displaying correctly in Apple Preview. In the attached image, the left side shows how the artwork is supposed to look, and the right side shows how it looks in Preview. Those white lines are not supposed to be going across the product image, and the drop shadow is also interfering with the product image. I can open the PDF in Acrobat 9 Pro, and it looks fine, as in the image on the right. Others without Acrobat see the image on the right. I've checked my settings in Illustrator and see no issues there and cannot figure out for the life of me why this is happening. Does Preview simply not play nice with PDFs from other software? Is this perhaps a non-issue with Illustrator CC and Preview? I need to figure this out, because this particular ad went to press in a magazine as shown in the image on the right!!