How to Choose the Perfect Photo for a Custom Charm
A photo charm is only as good as the photograph inside it. The print area is small (typically 16 to 25mm across), so not every photograph works. The ones that shine at that size share a few common traits: a clear subject, good contrast, close framing, and enough resolution to hold detail at small scale. This guide walks through what to look for and what to avoid.
Resolution
The minimum we recommend is 500x500 pixels. At that size, we can crop and print at 300 DPI on a 16mm charm without visible pixelation. Larger is always better. A modern smartphone photo (typically 3000x4000 pixels) gives us plenty to work with.
Avoid screenshots from social media. Facebook, Instagram, and WhatsApp compress images heavily. If the photo you want to use only exists on social media, check whether you (or the photographer) have the original. The difference in print quality between a compressed social media image and the original file is dramatic at small sizes.
Composition and framing
The best charm photos have a single clear subject filling most of the frame. A close-up portrait of one person, a pet's face, a pair of hands holding something meaningful. The simpler the composition, the better it reads at 16-25mm.
Group photos are the trickiest. Three or more people in a wide shot means each face becomes very small on the charm. For group photos, consider a heart-shaped or oval charm (which has a slightly larger print area) or choose a photo where the group is tightly framed with faces close together.
Full-body shots rarely work. At charm scale, a full-body image reduces the face to a few millimetres across. If the full-body pose matters (a wedding dress, a uniform, a special outfit), consider a larger pendant format rather than a standard charm.
Lighting and contrast
Well-lit photos with good contrast between the subject and the background print the best. Natural light (outdoor shots, window light) tends to produce the most flattering results. Dark, underexposed photos lose detail when printed small. Overexposed (washed-out) photos lose the highlights that give a face its dimension.
We can adjust brightness and contrast during the proofing stage, but we cannot recover detail that is not in the original file. A slightly underexposed photo can be brightened; a completely dark photo cannot.
What works best
- Close-up portraits with the face filling 60-80% of the frame
- Pet portraits from the shoulders up
- Candid shots with natural expression (these usually print with more life than posed studio shots)
- Photos with a simple or blurred background (the subject pops)
- Black-and-white or sepia photos (these can look striking in silver settings)
What to avoid
- Low-resolution screenshots from social media
- Wide shots where the subject is small in the frame
- Photos with busy backgrounds that compete with the subject
- Heavily filtered photos (Instagram filters reduce tonal range)
- Photos where the subject is backlit (face in shadow)
The proof stage
We send a digital proof before printing every charm. The proof shows the photograph cropped and scaled to the exact size and shape of the chosen setting. This is your chance to approve the crop, request adjustments, or send a different photo entirely. We never print without sign-off.
If you are unsure whether your photo will work, send it to [email protected] and we will give you honest feedback before you order.