You set up a Twitter profile. Then LinkedIn. Then Instagram. Then a YouTube channel. Then your podcast. Then your Slack community. Each one wants a profile image at a different size, a banner at a different aspect ratio, an avatar that crops differently. Six months in, you have 47 versions of your logo scattered across cloud folders and the brand has quietly drifted.
The fix isn't more careful manual work. It's a system. Here's the one that works for a one-person founding team.
The core principle: master assets + platform exports
Instead of designing for each platform, you design master assets at the largest size you'll ever need, then export them down to platform-specific sizes. Edits happen to the master. Exports get regenerated. The platform variants are derivative, not parallel.
The five master assets every brand needs:
- Master logo (vector). SVG file. The single source of truth for your wordmark.
- Master square avatar. 2400x2400px PNG. Designed so the brand mark sits centered with safe padding on all sides. Important because every platform crops differently.
- Master horizontal banner. 3000x1000px PNG. The aspect ratio handles most platform banner needs with some cropping.
- Master vertical poster. 1080x1920px PNG. Covers stories, Reels, TikTok, Shorts.
- Master OG share image. 1200x630px PNG. The "share preview" image used by social platforms when someone links to your site.
Each master is the largest size you'll ever need. Every platform export is smaller. You never recreate from scratch.
The safe-area rule for avatars
Twitter crops square avatars to circles. So does LinkedIn. So does Slack. So does Discord. So does almost every modern platform. If you design your avatar to fill the square, the corners get cut off, and any detail near the edge disappears.
The fix: design your avatar inside a "safe area". A circle that fits inside the square, with at least 10% padding on all sides. The square corners can stay branded if you want (some platforms still display the corners), but no critical information should live there.
Practical test: take your avatar PNG into any image editor, overlay a circle that touches all four edges, and check what's inside the circle. Everything important should be there. If your full wordmark is in the square, only the part inside the circle survives the crop.
The banner asymmetry problem
Every platform's banner aspect ratio is different. Twitter is 3:1, LinkedIn personal is roughly 4:1, LinkedIn company is roughly 5:1, YouTube is 16:9, Facebook is roughly 2.7:1. If you design one banner and use it everywhere, it'll be cropped differently in each place.
The solution: design your master banner with critical content in the narrowest common aspect ratio. The 16:9 YouTube banner is the tightest. Everything important should sit within a 16:9 rectangle in the center of your 3000x1000px master. The wider platforms (Twitter, LinkedIn) will show more of the banner, but the critical content stays visible across all sizes.
Practical test: take your master banner and visualize a 16:9 rectangle centered on it. Critical information (tagline, key visual, mark) should be inside that rectangle. Everything outside it is "extra". Visible on some platforms, cropped on others.
The export workflow that scales
Once you have masters, you need to regenerate platform exports systematically. Three approaches:
Manual exports (works for 1-2 platforms). Open the master in your editor, resize to platform spec, save. Slow but no setup. Don't do this if you have more than 2 platforms.
Figma export presets (works for solo founders with design tools). Build your masters in Figma. Define export presets for each platform's required sizes. When you update the master, re-export all sizes with one click. Takes 30 minutes to set up; saves hours over a year.
Bulk image processor (works if you don't use Figma). Tools like ImageMagick (free, command-line) or apps like Resize.app can batch-resize a master into platform-specific outputs. Build a script once, run it whenever the master changes.
For most founders, Figma export presets is the answer. It's the cheapest tool, the most flexible for design changes, and the export workflow is permanent.
The platform brand reference doc
Even with masters and exports, you still need a reference for what each platform requires. Maintain a one-page doc:
- Twitter: Avatar 400x400, banner 1500x500. Username @vellem, display name "Vellem", bio (160 chars), pinned tweet.
- LinkedIn (personal): Profile photo 400x400, banner 1584x396, headline format.
- LinkedIn (company): Logo 300x300, cover image 1128x191.
- Instagram: Avatar 320x320, bio character limit, link strategy.
- YouTube: Avatar 800x800, banner 2560x1440 (safe area 1546x423).
- TikTok: Profile photo 200x200, bio 80 characters.
- Slack / Discord: Workspace icon 512x512.
- Podcast (Apple/Spotify): Cover 3000x3000 minimum.
This list is the contract. When you change your brand, you regenerate exports at exactly these sizes and update everywhere. When you add a new platform, you add to this list and generate the new export from your masters.
The "audit day" practice
Once a quarter, spend an hour auditing your brand across platforms. Open each platform side-by-side and check: is the avatar current? Is the banner current? Does the bio reflect current positioning? Is the pinned tweet/post still on-message?
Most drift happens because nothing is wrong with any individual platform. They just stop matching each other and the brand erodes. Audit day catches it before it becomes a re-brand.
If you set up the master assets right at the start, audit day takes an hour. If you didn't, it takes a week. The choice you make on day one determines which version you live with.
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