Notes and Errata
Jan 1 - The PDF file on this website is a pre-publication version. Some images were changed between this version and the published version, but differences should not affect the final answer or resolution mechanic of this puzzle. We will switch out this pdf for the publication version as soon as it is available to us. Sorry for any inconvenience this may cause.
Jan 1 - The published PDF version has a typo in the title. The name of the puzzle should be Photo Graphic, not Photographic.