LinkedIn does not set one post size. Its Help Center gives photos a ratio range of 3:1 to 4:5 with 1080 pixels wide recommended, and videos a range of 256 × 144 to 4096 × 2304 pixels. For document posts, the format people call carousels, it gives only file limits: 100 MB and 300 pages. Each figure below is tied to the post type it applies to.
LinkedIn post sizes at a glance
LinkedIn publishes limits for each type of post rather than one size for all of them. The last column shows where each figure applies, because some LinkedIn pages cover only Page posts or ads.
| Post type | Size or ratio | Other limits | Applies to |
|---|---|---|---|
| Single photo | Ratio 3:1 to 4:5, at least 552 × 276 px, 1080 px wide recommended | 5 MB | Posts from the homepage, a Group or a Page |
| Multiple photos | Shown at a maximum ratio of 4:5, for example 640 × 800 px | Up to 20 photos | Posts from the homepage, a Group or a Page |
| Link preview image | 1.91:1, 1200 × 627 px, more than 200 px wide | None listed | Page posts with a link |
| Video | Ratio 1:2.4 to 2.4:1, 256 × 144 to 4096 × 2304 px | 5 GB, 3 seconds to 15 minutes | Video shared on LinkedIn |
| Document (carousel) | No page size published | 100 MB, 300 pages | Posts from the homepage, a Group or a Page |
The diagram above draws the image ratios at the same scale. The heights for 3:1, 1:1 and 4:5 at 1080 pixels wide are worked out from the ratios.
Image post size
LinkedIn's help page for sharing photos lists these requirements:
- The photo must be at least 552 pixels wide and 276 pixels high. LinkedIn recommends 1080 pixels wide.
- The aspect ratio can range from 3:1 to 4:5 (width to height). If the ratio is larger, the image is centered and cropped to fit the maximum ratio.
- The size limit for an upload is 5 MB.
- Photos cannot be resized or edited after they are posted.
LinkedIn warns that small, low-resolution photos may appear in low quality. Its list of supported media types adds that images can be GIF, JPEG, PNG or WEBP, plus HEIF/HEIC on iOS, with a maximum resolution of 36 megapixels.
At the recommended width, the allowed range means a height from 360 pixels (3:1) to 1350 pixels (4:5). A square photo at 1080 × 1080 sits inside it.
Will my image fit?
Divide width by height and compare the result with the range, which runs from 3 (3:1) down to 0.8 (4:5). Common sizes checked this way:
| Image size | Ratio | Inside the range? |
|---|---|---|
| 1500 × 500 | 3:1 | Yes, the widest allowed |
| 1920 × 1080 | 16:9 (1.78:1) | Yes |
| 1200 × 627 | 1.91:1 | Yes |
| 1080 × 1080 | 1:1 | Yes |
| 1080 × 1350 | 4:5 | Yes, the tallest allowed |
| 1080 × 1920 | 9:16 | No, taller than 4:5 |
The ratios are calculated from the sizes; the range is LinkedIn's. For an image outside it, LinkedIn says only that it is centered and cropped to fit the maximum ratio, so crop a 9:16 image to 4:5 yourself if the framing matters.
Multi-image posts
You can upload up to 20 photos in one post. LinkedIn renders them at a maximum ratio of 4:5, for example 640 × 800 pixels, and puts more visual emphasis on the first image. The layout depends on that first image:
- Two images appear side by side and keep their aspect ratios.
- With three or more, a landscape first image, or one shorter than 4:3, appears at the top with the others in a row below it.
- A portrait or square first image, or one taller than 4:3, appears in a left column with the others stacked to the right.
If the images in the first and second rows are taller than the 4:5 container, the bottom row is cropped to fit.
Link preview image size
A post can hold a link or an image, but not both. For a link, LinkedIn creates a preview image from the page being shared.
LinkedIn's image specifications for Pages give a size for custom images on a Page post with a link: a 1.91:1 ratio (1200 × 627 pixels), with an image more than 200 pixels wide. An image under 200 pixels wide shows as a thumbnail on the left of the post.
That thumbnail rule does not apply to a post with only an image, or an image and text; there the image is enlarged to fit the feed. On mobile, images of other ratios are shown in full with subtle white padding rather than cropped.
LinkedIn's help page for personal posts does not list a link preview size.
Video size
LinkedIn's video sharing help page lists the requirements for a video post:
- Aspect ratio: 1:2.4 to 2.4:1, which covers vertical (9:16), square and landscape (16:9) video
- Resolution: 256 × 144 to 4096 × 2304 pixels
- File size: 75 KB to 5 GB
- Length: 3 seconds to 15 minutes, with a 2 second minimum when uploading from the LinkedIn mobile app
- Frame rate: 10 to 60 FPS
- Bit rate: 192 Kbps to 30 Mbps
LinkedIn's media types page, the more recently updated of the two, lists MP4 and MOV for desktop, iOS and Android, WEBM for desktop and Android, and MKV for desktop only. The older video troubleshooting page lists further types such as AVI and WMV.
A separate LinkedIn page covers videos on Pages and Career Pages. It gives a 10 minute maximum instead of 15 and says MOV files are no longer supported there, so do not apply it to regular video posts.
LinkedIn carousel size and dimensions
LinkedIn publishes no carousel size. Its help pages call the format a document upload: you add a file to a post and members read through its pages. What LinkedIn does state is limited to the file:
- The file can be a PPT, PPTX, DOC, DOCX or PDF.
- The file cannot exceed 100 MB and 300 pages. The word limit is one million words.
- You can edit the description or remove the post, but you cannot change the document after it is posted.
- Members who can see the post can download the document as a PDF.
LinkedIn gives no pixel size or inch size for document pages, and this guide does not recommend one. The closest official guidance is for paid Document Ads, covered below, and it is not a rule for regular posts. If you need a starting shape, vertical, horizontal and square are the ones LinkedIn names in that ads guide, and the guide requires every page in an ad to be the same size.
If you are comparing carousel formats across platforms, the Instagram carousel guide covers how that format works on Instagram.
Post sizes versus ad sizes
LinkedIn's ads guide has its own specifications. They differ from the post limits above, so do not mix them:
- Single Image Ads: 1.91:1 (horizontal), 1:1 (square) or 1:1.91 (vertical, mobile only), up to 5 MB, in JPG, PNG or GIF. The vertical ad ratio is taller than the 4:5 limit for photo posts.
- Document Ads: PDF, DOC, DOCX, PPT or PPTX up to 100 MB, with vertical, horizontal or square pages, and a recommendation of under 10 pages (300 pages is the maximum). The guide lists standard PDF layouts such as Letter at 8.5 by 11 inches and A4 at 8.27 by 11.69 inches, and requires that PDFs with pages of different sizes be fit to one page size.
Sizes you will see elsewhere
Third-party guides often give fixed pixel sizes: 1200 × 627 for feed images, 1080 × 1080 or 1080 × 1350 for carousel pages, 1920 × 1080 for video. Checked against LinkedIn's pages:
- 1200 × 627 is LinkedIn's size for custom link images on Page posts. For photos, LinkedIn gives a ratio range, and 1.91:1 falls inside it.
- 1080 × 1350 is 4:5 at the recommended 1080 pixel width, the tallest photo LinkedIn allows. LinkedIn does not name it for document pages.
- 1080 × 1080 and 1920 × 1080 fit the photo ratio range and the video resolution range, but LinkedIn does not list either as a required size.
LinkedIn's Help and Marketing Solutions pages state no pixel size for document pages, no link preview size for personal posts and no inch size for any post type, so this guide does not either. For other platforms, see the social media size guides.
Sources and last check
The figures on this page come from these pages, read on October 19, 2026:
- Share photos on LinkedIn (LinkedIn Marketing Solutions Help)
- Media file types supported on LinkedIn (LinkedIn Help)
- Video sharing troubleshooting (LinkedIn Help)
- Video specifications for your LinkedIn Pages and Career Pages (LinkedIn Help)
- Image specifications for your LinkedIn Pages and Career Pages (LinkedIn Help)
- Upload and share documents on LinkedIn (LinkedIn Help)
- Document Ads Specifications (LinkedIn Marketing Solutions, ads)
- Single Image Ads specifications (LinkedIn Marketing Solutions, ads)
Ratios, heights and the comparisons between ad and post ratios are calculated from LinkedIn's figures.
The Help pages carry their own "last updated" labels, as read that day: photos 2 years ago, documents 3 years ago, video 2 years ago, Page and Career Page video 4 years ago, Page images 2 months ago, media types 4 weeks ago.
LinkedIn can change its limits, so check its Help Center if a figure matters to you.
Frequently asked questions
What size should a LinkedIn post image be?
LinkedIn recommends photos 1080 pixels wide, with a minimum of 552 × 276 pixels and an aspect ratio from 3:1 to 4:5. The file limit is 5 MB.
Can I post a 1920 × 1080 image on LinkedIn?
Yes. At 16:9 (1.78:1) it falls inside the 3:1 to 4:5 range for photos. It must also stay within the 5 MB upload limit. A 1080 × 1920 image is 9:16, which is taller than 4:5.
What is the LinkedIn carousel size?
LinkedIn does not publish a page size for carousels, which it calls document uploads. It limits the file to 100 MB and 300 pages, in PPT, PPTX, DOC, DOCX or PDF format.
What are the LinkedIn carousel dimensions?
There is no pixel size in LinkedIn's help pages for document posts. Its Document Ads specification lists vertical, horizontal or square pages, but that applies to ads.
What size is a LinkedIn link preview image?
For a Page post with a link, LinkedIn lists a 1.91:1 ratio (1200 × 627 pixels) and an image more than 200 pixels wide. It does not give a size for personal posts.
How long can a LinkedIn video be?
LinkedIn's video sharing help page lists 3 seconds to 15 minutes, and up to 5 GB. A 10 minute maximum appears on its separate page for Page and Career Page videos.
How many images can I add to one LinkedIn post?
Up to 20. LinkedIn shows them at a maximum ratio of 4:5 and gives more emphasis to the first image.
Are LinkedIn ad sizes the same as post sizes?
No. Single Image Ads list 1.91:1, 1:1 and a mobile-only 1:1.91 ratio, and Document Ads recommend under 10 pages. Photo posts use a 3:1 to 4:5 range and document posts allow up to 300 pages.