linkedin · 2026-09-18

The Substack Headshot Crop: Show Your Face, Not Your Forehead

Your Substack bio photo needs a tight crop. We'll show you the exact framing that builds connection, why the standard LinkedIn crop fails here, and how to get it right with AI.

Why Substack Needs a Different Crop

Your Substack profile picture is a 120x120 pixel circle. That’s the size of a large postage stamp. On a phone screen, it’s a speck of light in a reader’s hand. What happens when you drop your standard LinkedIn headshot into that tiny circle? You vanish. Your face becomes an indistinct smudge, your expression unreadable. The platform’s design forces intimacy; your photo must match it. This isn’t about professional branding—it’s about human recognition. A reader scrolling their inbox decides in a half-second whether to open your note from a familiar face or a distant professional. Which would you choose?

Think about the context. LinkedIn photos are viewed on desktops by recruiters scanning a grid. Substack photos are viewed on mobile devices by tired commuters, parents waiting in school pickup lines, people looking for a connection. The emotional distance is different. I once had a client, a brilliant economist, who used a stern, wide-shot corporate photo for his popular finance Substack. His open rates were fine, but his comment section was a ghost town. After we shot a tighter, warmer crop focused purely on his eyes and smile, he emailed me two weeks later: “A reader told me they finally felt like I was talking to them, not at them.” The photo didn’t change his words. It changed the doorway his readers walked through.

The Exact Crop for Reader Connection

Forget the standard “head and shoulders” composition. The Substack crop is far more aggressive. Imagine drawing a box from the top of your hair to the knot of your tie or the base of your collarbone. That’s it. The frame’s bottom edge should sit just below where a shirt’s top button would be. The top should show just a sliver of your hairline—maybe an inch of forehead at most. In that postage-stamp circle, your face will occupy about 80% of the available space. Your eyes will be dead center. This creates a magnetic pull, a visual handshake. Can you crop your existing photo this way? Probably not. Most portraits aren’t shot with this brutal intimacy in mind; the original file lacks the resolution or framing to cut this close without looking like a surveillance camera zoom.

Here’s the test: open your photo on your phone. Pinch to zoom until your face fills the screen, with the edges cutting off as I described. Does it feel too close, almost uncomfortable? Good. Now shrink it down to that 120-pixel circle. See how your expression suddenly pops? That’s the conversion point from a portrait to an icon. The background should be simple, but it’s almost irrelevant—it gets blurred into abstraction at this scale. All that matters is the set of your mouth, the crinkle around your eyes, the tilt of your head.

Avoiding the Standard LinkedIn Mistake

The classic LinkedIn error is leaving too much empty “air” above your head. This creates psychological distance. On a profile page, it looks balanced. In a Substack circle, it turns your face into a small moon floating in a dark sky. Your forehead becomes the dominant feature. I’ve watched clients during shoots instinctively want to step back, to include more of their suit jacket, to create what they feel is a “complete” picture. I have to stop them and say, “Trust me, on the screen that matters, only your face will survive.” Another mistake is the over-the-shoulder glance. It looks dynamic in a large format, but in a tiny circle, it just looks like you’re avoiding the reader’s gaze. Your eyes must be directly engaging the lens.

Let’s check your current photo. Upload it to your Substack dashboard and look at the preview. Do you see a person, or a hat on a stick? If your hairstyle is more visible than your smile, you’ve missed the mark. This crop isn’t about vanity; it’s about signal strength. A weak signal gets lost in the noise of the inbox. A strong signal—a clear, close, confident face—makes someone pause their scroll. It says, “I’m here, and I’m talking to you.”

How to Get This Crop with Portraze

You need a source file built for this purpose. If you’re using a professional portrait, tell your photographer your primary use is for a “social avatar” or “tiny profile circle.” Ask them for a tightly cropped version from the session. If you’re starting from scratch, the technical specs are simple: shoot straight-on, with even light on your face (a window on a cloudy day is perfect), and fill the frame with your face as described. Use the highest resolution possible. The tool needs quality pixels to work with.

When you upload, you’ll guide the crop. Don’t rely on auto-crop. Manually adjust the bounding box to exclude almost all of your forehead and anything below your collarbone. Preview it repeatedly at a small size. Your goal is to make every pixel of that 120x120 circle work to convey your expression. The background removal and lighting consistency features are useful here, as they eliminate distracting elements that would otherwise compete for attention at a microscopic level. The final output should feel intensely personal, not corporate.

One Final Check Before You Publish

Do this on your phone. Not your desktop. Pull up your Substack profile with the new photo. Hold the phone at arm’s length, then bring it to a normal reading distance. Does your face register immediately as a friendly, recognizable presence? Or do you have to squint to figure out who it is? Show it to a friend and ask, “What do you think I’m feeling in this picture?” If they say “confident,” “approachable,” or “thoughtful,” you’ve nailed it. If they say “not sure” or “professional,” it’s probably still too distant. The final check is emotional, not technical.

Your headshot is the first thing people see before they read a single word. Make it a welcome, not a warning. Crop tight, smile with your eyes, and publish. Then go write something good.

Related, and worth reading next: Your Headshot Shouldn't Look Like a Mugshot.