Photograph the whole dog before the details
Start with a set that fixes his overall look, because marks only make sense on a known frame. Take a face-on portrait, a profile from each side, and a view from above showing his back pattern, all in plain daylight against an uncluttered background, with your dog standing naturally rather than posed in a costume or wrapped in a blanket. Daylight matters: indoor lighting flattens a brindle coat to brown and can hide the difference between black and deep liver markings. These wide shots record his build, height against a door frame or your leg for scale, coat length, ear shape, and tail carriage, the first things anyone comparing a found dog against records will check.
Close in on the marks that are truly his
Now photograph each distinguishing feature on its own, close enough to be unmistakable. Work through scars and healed injuries, patches or splashes of contrasting colour, a blaze or sock pattern, extra or missing toes, a chipped or oddly coloured tooth visible when he pants, one ear that folds differently, a wart, a kink in the tail, or a patch where fur grows in another direction. Put a clean coin or your fingertip beside small marks to give scale, and take two angles of anything subtle. If a mark hides under long fur, part the coat for one shot and show it covered in another, since a clipped summer dog may look quite different from his winter self.
Match every photo with plain written words
Photographs fade into a folder; words get searched, read aloud over the phone, and copied onto a poster. Beneath or beside the set, describe each mark by its location, size, shape, and colour: left hind leg, a white patch the size of a palm; right ear tip folded forward; a thin scar along the ribs you can feel more easily than see. Describe the whole dog in one short paragraph too, in the order a stranger scans: size, coat, colour, face, ears, tail. Avoid breed shorthand alone, because a finder who does not know breeds needs the visible version. Update the words whenever you update the photos, so the two never tell different stories.
Refresh the record as your dog changes
ID records fail quietly as dogs change. Puppies outgrow their markings' proportions, dark coats grey around the muzzle, weight changes alter the silhouette, a groom can shorten a coat past recognition, and new scars or lumps arrive with an active life. Retake the full set after any of those changes, and at least whenever you renew his other paperwork, keeping the old set dated rather than deleting it, since an older photo may match how someone remembers seeing him. Store the current set with his chip and vet details. Include one shot with a familiar adult hand resting lightly along his back, which helps anyone reading the record judge his size without needing formal measurements. KinsLe's Pet Pass presents your dog's identity and your contact details together, so the marks you documented sit on the ID a finder or clinic is already looking at.