Why do my pictures move when I place them at the edge of the page?
If you place a picture directly on or near the red trim line at the edge of the page, the editor will automatically move that picture either 3mm outside the red line or 6mm inside the red line.
This is because the trimming of an album is not always millimetre perfect. Therefore, if you want your images to bleed off the page edge then they need to go all the way to the outside blue line. Alternatively if you want some background showing around your pictures, then they need to be at least 6mm inside the red line to ensure the background looks even.