LinkedIn Image Sizes & Post Dimensions (2026)
By Sam Cassman · Last verified
What size should a LinkedIn image be? It depends on the aspect ratio rather than a pixel count, because LinkedIn scales to fit the feed column and crops anything too tall. We checked every feed placement against what survives the mobile crop. Read on for the ratio to design to, and the exact dimensions for posts, carousels, banners and link previews.
Most guides give you a pixel count and stop. That is the wrong unit. LinkedIn cares about aspect ratio. It will scale your image to fit the feed column, but it will crop anything outside the ratios it supports. Get the ratio right and the pixels mostly take care of themselves.
The three ratios that matter
| Ratio | Pixels | Where it wins |
|---|---|---|
| 4:5 portrait | 1080 × 1350 | Feed posts, the most vertical space you can take on mobile |
| 1:1 square | 1080 × 1080 | Feed posts, safe everywhere, less commanding than portrait |
| 1.91:1 landscape | 1200 × 627 | Link previews and anything that must match an OG card |
If you only remember one number, remember 1080 × 1350.
Why portrait beats square on mobile
The mobile feed is a fixed-width column. A square image and a portrait image are both scaled to that width, so the portrait one is simply taller on screen, so it pushes more competing content out of view and holds the thumb for longer. That is the entire mechanism. It is not an algorithm preference, it is geometry.
Carousels are a different shape
Carousels are PDFs, not images, and they follow their own ratio. Flypost's carousel templates default to 4:5 (1080 × 1350) for the same mobile-height reason, and the renderer exports vector PDF at 1:1 scale, so text stays crisp instead of being re-compressed.
Compression: design around it
LinkedIn re-encodes what you upload. Two practical consequences:
- Export at display size, not 4× larger. Downscaling by LinkedIn's encoder is worse than downscaling in your design tool.
- Keep text large. Thin type below roughly 24px at final size turns mushy after re-encoding. This is the single most common reason a carousel looks sharp in the editor and soft in the feed.
Image dimensions are only half the spec problem. The other half is text. Our LinkedIn character counter covers every limit that applies to the copy sitting above the image.
Quick reference
| Asset | Dimensions |
|---|---|
| Feed post (portrait) | 1080 × 1350 |
| Feed post (square) | 1080 × 1080 |
| Link preview / OG card | 1200 × 627 |
| Carousel slide | 1080 × 1350 |
| Profile photo | 400 × 400 |
Bookmark this one. We re-verify it whenever LinkedIn changes the feed.
Attaching an image is the single most reliable way to lift a post: it earned 33% more reactions than the same creator's text-only posts in our LinkedIn algorithm study of 130,000 posts. Size decides how much of the feed that image takes up, and how long the post itself should be turns out to matter far less.
For the profile itself rather than the feed, the exact LinkedIn banner dimensions cover the background photo and its mobile safe zone. If you are stacking several images into one post, how many photos you can post on LinkedIn has the per-image specs, and the full character-limit reference covers the copy that sits above the image.
Frequently asked questions
- What is the best image size for a LinkedIn post?
- 1080 × 1350 pixels (4:5 portrait). It occupies the most vertical space in the mobile feed without being cropped, and mobile is where most of your audience scrolls.
- Does LinkedIn compress images?
- Yes. LinkedIn re-encodes uploaded images, which softens fine detail and thin text. Export at the exact display dimensions rather than uploading something much larger, and keep body text well above 24px at the final size.
- What aspect ratios does LinkedIn support on feed images?
- 1.91:1 landscape, 1:1 square and 4:5 portrait. Images taller than 4:5 are cropped to fit.
Written by
Sam Cassman
Founder, Flypost · Chiang Mai, Thailand
I'm Sam. I built Flypost after watching too many good businesses sit on years of material (blog posts, call transcripts, case studies, half-finished decks) and post almost none of it.
I write everything here myself. When I claim something works on LinkedIn, it's because I tested it first-hand or ran the numbers across our own data. Where I'm working from a small sample, I'll say so. I'd rather be useful than certain.