HP's approach to "borderless" printing is, in a word, stupid. Instead of "borderless," they should call it "oversize the image and crop the edges." While I see why such an approach may make sense for novice users who don't understand that the proportions of their digital images don't quite match the proportions of the paper they're printing to, for someone who is used to preparing files in Photoshop, it's completely frustrating. I spent hours trying to figure out how to get around this bug only to learn that it's a feature that cannot be removed.
Overall, unless you like pulling out your hair over prints that look like they spent an hour in a dishwasher, I strongly recommend staying away from this printer.