Can I make a lithophane directly from a HEIC file?

Generally no. Lithophane makers, ButterySpace included, take PNG, JPG, or WebP, and iPhones save photos as HEIC by default. The fix is a one-step conversion first: ButterySpace's Convert Format tool turns a HEIC into a PNG or JPG for 1 pat, and the lithophane itself costs 2, so the whole project fits inside the 5 free pats you get every day.

Is an iPhone photo high-resolution enough for a lithophane?

Easily. A lithophane panel resolves detail at about 0.2 mm per pixel, so even a small panel uses only a fraction of a 12-megapixel photo. Any iPhone from the last decade has resolution to spare. What matters far more is contrast and a clear subject, and that you start from the original photo rather than a screenshot or a re-compressed copy from a messaging app.

Do portrait-mode photos make good lithophanes?

Yes, often great ones. The blurred background does you a favor: busy backgrounds are one of the main things that turn lithophanes to mush, and portrait mode has already smoothed yours into a soft gradient that backlights beautifully. The subject keeps its full detail.

Can I just text the photo to myself?

Avoid it. SMS, WhatsApp, and Messenger recompress images aggressively, and the compression artifacts that are invisible on a phone screen become visible blotches when brightness is translated into physical thickness. Use AirDrop, a cable, iCloud, or Mail at Actual Size so the original pixels survive the trip.

How to Make a Lithophane From an iPhone Photo

The best lithophane photos are not in a folder on your desktop. They are on your phone: the wedding shot, the kid on the beach, the dog mid-zoomies. Which means every lithophane project actually starts two steps before any converter sees the picture, and both steps are where phone photos quietly go wrong. This guide is the phone-specific path: choosing the right shot from your camera roll, getting it off the iPhone without wrecking it, getting past the HEIC format wall, and ending with a printed panel that glows. If you want the deeper background on how lithophanes work at all, start with the full photo-to-lithophane guide and come back.

The two snags between your camera roll and a print

Snag one is the format. iPhones have saved photos as HEIC by default since 2017, and lithophane makers, ButterySpace's included, want PNG, JPG, or WebP. So the file needs one conversion before any lithophane tool will look at it. That used to mean hunting for software; now it is a one-drop, 1-pat step in the same place you make the lithophane.

Snag two is compression on the way off the phone. A lithophane translates brightness into physical thickness, so compression artifacts that are invisible on screen can print as visible blotches in the panel. The single biggest mistake here is texting the photo to yourself or pushing it through WhatsApp or Messenger, all of which recompress images hard. Get the original pixels out instead.

Pick the right shot (30 seconds of scrolling well spent)

The full checklist lives in what photos make the best lithophanes, but the phone-specific version:

Contrast and a clear subject win. Faces, pets, and people against a distinct background glow. Flat, dim, or extremely busy shots turn to mush.
Portrait mode is your friend. The computational background blur reads as a soft, calm gradient behind a sharp subject, which is exactly the recipe a lithophane likes.
Use the photo, not a screenshot of the photo. A screenshot is a low-resolution copy of your screen. The original in your camera roll has several times the detail.
Live Photos are fine. The still frame is what exports; you lose nothing.

Get it off the phone at full quality

Any of these preserve the original pixels:

AirDrop to a Mac. Fastest if you have one.
USB cable to a PC. Bonus: in Settings, under Photos, setting Transfer to Mac or PC to Automatic makes iOS convert the format for you during the copy, which can skip the HEIC step entirely.
iCloud Photos in any browser: sign in, select, download.
Mail it to yourself and choose Actual Size when iOS asks. The attachment arrives as a JPG at full resolution, which also skips the HEIC step.

And the routes to refuse: SMS, WhatsApp, Messenger, and most chat apps. They are built to make photos small, and small is the enemy here.

The conversion step (when the file is still HEIC)

If your photo arrived on the computer as a HEIC, convert it before the lithophane step: drop it into ButterySpace's Convert Format tool, choose PNG or JPG, and download. It keeps the photo's orientation, takes files up to 20 MB, and costs 1 pat. For every other way to crack a HEIC open, including the tricks built into the iPhone itself, see how to convert HEIC to JPG.

Make the lithophane

Now the fun part, and it is genuinely one drop:

Open the Lithophane tool and drop in your converted photo.
Leave the defaults alone on a first run. They are calibrated from real test prints, and a tone curve is applied automatically so a normal phone photo comes out well without adjustment. A frame with an optional hang hole makes it display-ready straight off the printer, and a curved arc is there if you want the lamp look.
Make it and download. This costs 2 pats. The bundle holds a color-mapped 3MF with the frame as a separate object, so a multicolor printer prints the frame in any color with zero painting, plus a matched STL for any slicer. It ships already standing up in the correct print orientation, with a README of settings.
Print it vertically in white or natural filament, 100 percent infill, 0.12 mm layers or finer. The full reasoning is in lithophane print settings that actually work.

The pat math: 1 pat to convert the HEIC plus 2 pats for the lithophane is 3 of the 5 free pats you get every day, refilled daily, no sign-in. The whole project, phone to print file, costs nothing and leaves you butter to spare.

Resolution worries you can let go of

People ask whether a phone photo is "enough" for a lithophane, and the honest answer is that the panel is the bottleneck, not the phone. A lithophane resolves around 0.2 mm per pixel, so a 100 mm wide panel uses roughly 500 pixels of width. Your iPhone photo has thousands. This is also why cropping is your quality lever: cropping in on the subject before converting spends those abundant pixels on the part of the image you care about, instead of on empty background.