# LinkedIn Image Sizes & Post Dimensions (2026)

Source: https://www.flypost.io/learn/linkedin-post-image-size
Author: Sam Cassman, Founder, Flypost
Last verified: 2026-10-12

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.

> **Draft. Specs need a first-hand TEST pass before this ships.** The aspect ratios below are
> stable and verified, but the exact file-size ceilings and banner pixel values should be
> re-checked against live LinkedIn and screenshotted, per the RESEARCH-MAP rule for TEST pages.

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.

> Portrait's advantage disappears on desktop, where the feed column is narrower relative to the
> viewport. Design for mobile anyway. That is where the scrolling happens.

## 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.

> **Build a carousel at the right size**
>
> Our free generator exports a LinkedIn-ready PDF at the correct dimensions, so you never have to
> think about this. No signup.
>
> [Try it free](https://www.flypost.io/tools/linkedin-carousel-generator)

## 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](https://www.flypost.io/tools/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 **35% more reactions**
than the same creator's text-only posts in our
[LinkedIn algorithm study of 116,000+ posts](https://www.flypost.io/learn/linkedin-algorithm-study-data). Size decides how
much of the feed that image takes up, and
[how long the post itself should be](https://www.flypost.io/learn/linkedin-post-length) turns out to matter far less.

For the profile itself rather than the feed, the [exact LinkedIn banner
dimensions](https://www.flypost.io/learn/linkedin-banner-size) 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](https://www.flypost.io/learn/photos-per-linkedin-post) has the per-image specs, and the [full character-limit
reference](https://www.flypost.io/learn/linkedin-character-limits) 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.

---

Published by Flypost (https://www.flypost.io), the LinkedIn content studio. More guides: https://www.flypost.io/learn