I found an odd bug while printing a Pages '09 document to PDF. Attached are screenshots of my test document in Pages and the resulting PDF in Preview after I printed the Pages document to a PDF. My test document has three images, all starting from the same png file and all intended to have the text flow around their edges. They look fine in Pages. But when I print the document or print the document to PDF, the first and third images come out looking fine but the middle image has horizontal stripes through it. The first image is the original, copied from Photoshop and pasted into Pages. The second image is a cropped oval from the image, with a transparent background, also copied/pasted. The third image is the same as the second, but I saved it out of Photoshop and imported it into Pages (menu choice Insert -> Choose rather than Edit -> Paste). My conclusion is that the image corruption occurs only when both conditions are met: The image is nonrectangular. The image is pasted, not inserted. It drove me crazy until I figured out what conditions were causing it. At least I now know the workaround: If you have a nonrectangular image and don't need the text to wrap around it, fill the image background with white (or whatever background color your Pages document has) so the image becomes a rectangle. Then insert it or paste it. If you have a nonrectangular image and need the text to wrap around it, insert it rather than pasting it. It's a bother when I have a lot of different shapes to paste into a document (for example, snowflakes created in Photoshop), but I've learned that I have to save each one to a file and then insert it from the file. I'm at a loss to explain why this combination of factors produces a problem. Does anybody know why this happens? Why is pasting different than importing? Why does the corrupted image show up when printing to PDF but not when displayed in Pages? And why does the shape of the image matter?