LinkedIn Image Size Guide: Every Post Format in 2026

The best LinkedIn post image size is 1080 x 1350 pixels (a 4:5 portrait). LinkedIn recommends images 1080 pixels wide and accepts any ratio from 3:1 (wide) to 4:5 (tall), with a minimum of 552 x 276 pixels and a 5 MB limit per photo. Below are the official numbers for every format, where LinkedIn publishes them, and which one to pick for each kind of post.

LinkedIn image sizes at a glance

Supported image files are JPEG, PNG, WEBP and GIF on desktop and mobile, with HEIC on iOS only. The maximum image resolution is 36 megapixels.

What is the best image size for a LinkedIn post?

1080 x 1350. It's the tallest shape LinkedIn shows without cropping, so it takes the most room in a phone feed, and most LinkedIn scrolling happens on a phone. Square (1080 x 1080) is the safe second choice. Use landscape (1200 x 627) only when the image is a wide screenshot or the same graphic you use as a link preview.

If your image is taller than 4:5 or wider than 3:1, LinkedIn centers it and crops the edges. Uploaded photos can't be resized or edited after you post, so check the crop before you hit Post.

LinkedIn multi-image post size

You can add up to 20 photos to one post. The first image decides the layout: a portrait or square first image goes on the left with the rest stacked to the right, and a landscape first image goes on top with the rest side by side below it. The whole block renders at a maximum of 4:5, so anything taller in the bottom row gets cropped. Put your strongest image first and keep the others the same shape.

LinkedIn carousel (document post) size

LinkedIn doesn't publish a page size for document posts. What it does publish: PDF, PPT, PPTX, DOC and DOCX are supported, up to 100 MB and 300 pages. In practice, export slides at 1080 x 1350 (4:5) so each slide fills the feed like a portrait image, or 1080 x 1080 if you also reuse the slides elsewhere. Keep text large: people read carousels on a phone.

LinkedIn video size

LinkedIn accepts video from 256 x 144 up to 4096 x 2304, at ratios from 1:2.4 to 2.4:1, between 75 KB and 5 GB, and from 3 seconds (2 on mobile) to 15 minutes long. MP4 and MOV work everywhere. For the feed, a vertical 4:5 or square video takes more space than 16:9. Keep text and logos away from the edges, because LinkedIn's interface can cover them.

LinkedIn link preview image size

When you paste a link, LinkedIn builds the preview from the page's Open Graph tags. The image should be at least 1200 x 627 at 1.91:1 and under 5 MB. If it's narrower than 401 pixels, LinkedIn shows a small thumbnail instead of the big card. If the preview shows an old image, fix the tags on your page and refresh it with LinkedIn's Post Inspector.

Which format works best for a lead magnet post?

If you give away a guide, template or checklist with a "comment and I'll send it" post, the image has one job: make people want the thing. Three formats work:

1. One portrait image (1080 x 1350) showing the cover or the best page of the resource. Simple and the most space in the feed.
2. A short carousel that previews 3 to 5 pages and ends with "Comment GUIDE and I'll DM it to you". The preview earns the comment.
3. A screenshot of the result (a dashboard, a before and after) when the resource is a tool or a template.

Avoid a link preview image here. A link in the post sends people away instead of into the comments, and the comments are what you want.

Once the comments come in, sending the resource by hand to every commenter gets slow fast. LeadShark watches the post, sends each commenter a DM with the link, and can follow up with people who didn't reply. You set your own daily DM limit from 0 to 250 (150 recommended max). More than 1,500 creators use it, and it has delivered 2.8M+ DMs. See lead magnet examples for posts that worked.

Quick checklist before you post

• Portrait 1080 x 1350 for single images and carousel slides
• Under 5 MB per photo, 100 MB per document
• Strongest image first in a multi-image post
• Text big enough to read on a phone, away from the edges
• Post copy under the 3,000 character limit (see our LinkedIn character limit guide)
• Format line breaks and bold text with the LinkedIn text formatter

FAQ

What is the LinkedIn post image size?

LinkedIn recommends images 1080 pixels wide, at any ratio from 3:1 to 4:5. The best choice is 1080 x 1350 (4:5), then 1080 x 1080 (square). The minimum is 552 x 276 and the file limit is 5 MB.

What size should a LinkedIn carousel be?

LinkedIn doesn't publish one. 1080 x 1350 or 1080 x 1080 slides, exported as a PDF under 100 MB and 300 pages, work well.

Does LinkedIn crop images?

Yes, if the image is wider than 3:1 or taller than 4:5. LinkedIn centers it and crops the edges.

What is the LinkedIn link preview image size?

At least 1200 x 627 pixels at 1.91:1, under 5 MB. Images under 401 pixels wide show as a thumbnail.

How long can a LinkedIn video be?

From 3 seconds (2 on mobile) up to 15 minutes, and up to 5 GB.

What is the LinkedIn banner size?

1584 x 396 pixels for a personal profile. Use our LinkedIn banner size tool to crop yours.