Made an image which is squares of images like a chessboard snapped to a grid in indesign. When I open the PDF and zoom in there is slight miss alignment of one image where it overlaps over its grid square. Going back to indesign and zooming in to the max I cannot see the overlap, re-snapped everything and exported and same again. This also shows when I import the PDF to photoshop, this is very frustrating as someone is waiting for the artwork.