What size should a LinkedIn post image be?
Make it 1,080 pixels wide, in any shape between 3:1 and 4:5 (width to height). That is the recommendation on LinkedIn's Share photos on LinkedIn help page, shown as updated two years ago when we checked on 4 November 2026. The same page sets a minimum of 552 x 276 pixels and an upload limit of 5 MB. The page says that if the ratio is larger, the image is centred and cropped to fit the max ratio. It doesn't spell out which end, but it calls 4:5 the max ratio for multi-photo posts, so expect anything taller than 4:5 to lose its top and bottom.
For a post with several images you can select up to 20. LinkedIn renders them at a maximum ratio of 4:5 (its example is 640 x 800 pixels) and gives the first image more visual emphasis. The first image's height and orientation decide the layout, and a post with two images shows them side by side at their own ratios. Put your strongest image first and make it 4:5 or square.
What are the LinkedIn post dimensions for each format?
Here is each post format with LinkedIn's own figures, and the age of each help page as LinkedIn showed it on 4 November 2026. The older a page, the more likely the live app has moved on, so treat three- and four-year-old pages with care.
| Format | Size and shape | File limits | LinkedIn page |
|---|---|---|---|
| Photo | 1,080 px wide recommended; 3:1 to 4:5; at least 552 x 276 | 5 MB per upload | Share photos, 2 years old |
| Multi-photo | Up to 20 photos, shown at no taller than 4:5 | As for photos | Same page |
| Video | 256 x 144 to 4096 x 2304; 1:2.4 to 2.4:1; 10 to 60 fps | 75 KB to 5 GB; 3 seconds (2 in the mobile app) to 15 minutes; one video per post | Share videos, 2 years old |
| Document | No page size given; all pages the same size | Up to 100 MB and 300 pages; PPT, PPTX, DOC, DOCX or PDF | Upload and share documents, 3 years old |
| Link | Preview frame 1.91:1, 1200 x 627, taken from the linked page | A post carries a link or an image, not both | Share articles or links, 2 years old |
| Text | Up to 3,000 characters | Longer pieces go in an article | Post and share updates, 4 weeks old |
For the text, Davang Shah, VP of Marketing at LinkedIn, recommends posts of 200 to 300 words in a 30 June 2026 LinkedIn marketing blog post about getting posts cited in AI search results. Our table of every LinkedIn character limit covers the other text fields. Shah also recommends publishing at least two to three times a week. For a schedule you can keep, see our guide to how often a busy founder should post on LinkedIn.
Which image shape gets the most room in the feed?
The tall one. At LinkedIn's recommended width of 1,080 pixels, here is how tall each allowed shape comes out and how much feed space it takes next to a wide 1.91:1 image. The heights are our arithmetic from LinkedIn's ratios; the last column is our suggestion.
| Shape | Export at | Height vs a 1.91:1 image | Use it for |
|---|---|---|---|
| 4:5 portrait | 1080 x 1350 (1,080 x 5 / 4) | 2.4 times (1,350 / 565) | One chart, a quote card, a photo of people |
| 1:1 square | 1080 x 1080 | 1.9 times (1,080 / 565) | Product shots, logos, images you may reuse in an ad |
| 1.91:1 wide | 1080 x 565 (1,080 / 1.91) | 1 time | Wide screenshots and link-style images |
| 3:1 banner | 1080 x 360 (1,080 / 3) | 0.64 times (360 / 565) | Timelines and announcements; the widest LinkedIn allows |
Worked example. Say you reuse a 1080 x 1920 vertical graphic (9:16). It is taller than 4:5, so LinkedIn crops it to 4:5, which at that width is 1080 x 1350. That removes 570 pixels, 30% of the height (570 / 1,920), and because the crop is centred, about 285 pixels go from the top and 285 from the bottom. A logo in the top corner or a call to action along the bottom is exactly what gets cut.
Third-party guides don't always mention the taller shape. Sprout Social's image size guide, published 2 November 2026, lists 1200 x 1200 square and 1200 x 628 landscape images for a post with a shared image or link. Both sit inside LinkedIn's allowed range, but for a plain image post LinkedIn's photo page also allows the taller 4:5 shape. This week, set up one blank 1080 x 1350 canvas in your design tool and save it as your LinkedIn template.
What are LinkedIn's video and document limits?
Videos can run up to 15 minutes and 5 GB, at any shape from 1:2.4 (tall) to 2.4:1 (wide), according to LinkedIn's Share videos on LinkedIn and video sharing troubleshooting pages, both shown as updated two years ago. The minimum is 75 KB and 3 seconds from desktop, or 2 seconds from the mobile app. That range covers 9:16 vertical (1:1.78), square and 16:9 (1.78:1). Both pages say to keep the top, bottom and sides free of key elements, text and logos, so the LinkedIn interface doesn't cover them.
The bit rate range of 192 Kbps to 30 Mbps means the 5 GB cap rarely bites. A 15-minute video at the 30 Mbps maximum is 30 x 900 seconds = 27,000 megabits, or 3,375 MB, about 3.4 GB. If a 15-minute export comes out over 5 GB, its bit rate is above LinkedIn's range, so re-export at a lower setting rather than cutting the video.
Watch for an older page. LinkedIn's video specifications for Pages and Career Pages, shown as updated four years ago, still gives a 10-minute maximum and says AVI, QuickTime and MOV files are no longer supported, while the troubleshooting page lists MOV and AVI as supported on desktop, iOS and Android. LinkedIn's video FAQ adds that its video platform doesn't support animated GIFs.
Document posts can be up to 100 MB and 300 pages. LinkedIn's document help page gives no page size, but asks you to convert files to PDF where possible, flatten PDFs with multiple layers and fit every page to the same size. It also says members who can view the post can download the document as a PDF, so leave out anything you wouldn't hand to a stranger. If you are building a carousel of slides, our LinkedIn carousel guide covers slide sizes and Canva.
What size are LinkedIn link previews and image ads?
Link previews use a 1.91:1 frame of 1200 x 627 pixels, and LinkedIn takes the image from the page you link to. Its Share articles or links page says to allow a few seconds for the preview to appear, and its photo page says a post can carry a URL link or an image, not both. So a bad preview has to be fixed on the website you link to. Our guide to the LinkedIn Post Inspector shows how to fix link previews.
Two details save a wasted post. LinkedIn's Edit a shared post page says new URLs won't display a new preview image after posting, and that the share box remembers the last link you shared for three days, so wait three days before re-sharing a URL whose image or title you changed. Page posts are covered by a separate help page: for a custom image on a Page post with a URL, LinkedIn's Page image specifications ask for 1.91:1 (1200 x 627) and more than 200 pixels wide; narrower images show as a thumbnail on the left.
Sponsored posts have their own spec. LinkedIn's single image ad specifications, updated three months before our check, recommend:
| Ad shape | Recommended | Allowed range |
|---|---|---|
| Horizontal 1.91:1 | 1200 x 628 | 640 x 360 to 7680 x 4320 |
| Square 1:1 | 1200 x 1200 | 360 x 360 to 4320 x 4320 |
| Vertical 4:5 | 720 x 900 | 360 x 640 to 2430 x 4320 |
Ad images can be JPG, PNG or GIF up to 5 MB, and LinkedIn says paid vertical images only serve on mobile devices. LinkedIn's link and Page help pages say 1200 x 627 and its ad page says 1200 x 628. Both are 1.91:1 to two decimal places (1,200 / 627 = 1.914; 1,200 / 628 = 1.911), so the 1-pixel difference doesn't change the shape.
Is PNG or JPG better for LinkedIn posts?
JPG, going by the one piece of LinkedIn advice we found on it. Its Page image specifications say that for the best image resolution you should use the recommended dimensions and "choose a high-resolution JPEG instead of a PNG file." That advice is written for Page images; the member photo page we checked on 4 November 2026 doesn't list file types. LinkedIn's ad specs accept JPG, PNG or GIF, with animated GIFs up to 250 frames.
If a graphic looks soft after upload, check the width before the format. LinkedIn's photo page recommends 1,080 pixels and warns that small, low-resolution photos may display in low quality. LinkedIn also syncs drafts across devices, so you can save the post as a draft on your laptop and look at it in the phone app before anyone else sees it.
Can you change the image after posting?
No. LinkedIn's Edit a shared post page is plain about it: "Only the text in a post can be edited." Shared photos, articles, documents and videos can't be replaced; to change them you must delete the post and create a new one. The photo page adds that uploaded photos can't be resized or edited after posting, and the draft page says photos and videos can't be edited once saved in a draft. Check the media before you click Post:
For the up to 3,000 characters of text that go with the image, our 12 LinkedIn post templates for founders give you hooks and structures to start from.
Frequently asked questions
What is the best image size for a LinkedIn post?
1080 x 1350 pixels if you want the most room in the feed, or 1080 x 1080 for a square. LinkedIn's photo help recommends a width of 1,080 pixels and accepts shapes from 3:1 to 4:5, and says an image with a larger ratio is centred and cropped to fit. Keep each upload under 5 MB and no smaller than 552 x 276 pixels.
Can I edit a LinkedIn post after posting?
Yes, but only the words. LinkedIn's help centre says only the text in a post can be edited; photos, documents, videos and articles can't be replaced. On desktop, click the More icon on the post, choose Edit post, change the text and click Save (the app's steps are the same, with taps), and the post then shows the word Edited. To change an image, delete the post and share it again.
What is the ideal length for a post on LinkedIn?
LinkedIn allows up to 3,000 characters in a post. Davang Shah, LinkedIn's VP of Marketing, recommends 200 to 300 words in a June 2026 LinkedIn blog post on visibility in AI search, which fits well inside that limit. For anything longer, LinkedIn suggests writing an article instead, and Shah puts the ideal article length at 800 to 1,200 words.
How often should I post on LinkedIn?
At least two to three times a week, according to LinkedIn's own marketing team. Davang Shah's June 2026 post on AI search visibility recommends that pace, suggests one article and two to three posts weekly, and says consistency is more important than volume. In our view, two posts a week you can keep up is worth more than a daily burst you abandon.
Is PNG or JPG better for LinkedIn posts?
JPG, going by LinkedIn's guidance for Page images, which says to pick a high-resolution JPEG over a PNG for the best resolution. Its member photo help doesn't name file types, and its ad specs accept JPG, PNG and GIF. Whichever you choose, upload at 1,080 pixels wide and keep the file under the 5 MB photo limit.
What size should a LinkedIn video be?
Any resolution from 256 x 144 to 4096 x 2304 and any shape from 1:2.4 to 2.4:1, which covers vertical 9:16, square and 16:9. LinkedIn's limits are 75 KB to 5 GB, up to 15 minutes, and 10 to 60 frames a second. Keep text and logos away from the edges so the interface doesn't hide them.
Sources
- LinkedIn Help: Share photos on LinkedIn (shown as updated 2 years ago) (checked 4 Nov 2026)
- LinkedIn Help: Share videos on LinkedIn (shown as updated 2 years ago) (checked 4 Nov 2026)
- LinkedIn Help: Video sharing troubleshooting (shown as updated 2 years ago) (checked 4 Nov 2026)
- LinkedIn Help: Share a video on LinkedIn FAQ (shown as updated 2 years ago) (checked 4 Nov 2026)
- LinkedIn Help: Video specifications for your LinkedIn Pages and Career Pages (shown as updated 4 years ago) (checked 4 Nov 2026)
- LinkedIn Help: Upload and share documents on LinkedIn (shown as updated 3 years ago) (checked 4 Nov 2026)
- LinkedIn Help: Share articles or links (shown as updated 2 years ago) (checked 4 Nov 2026)
- LinkedIn Help: Edit a shared post (shown as updated 4 years ago) (checked 4 Nov 2026)
- LinkedIn Help: Image specifications for your LinkedIn Pages and Career Pages (shown as updated 3 months ago) (checked 4 Nov 2026)
- LinkedIn Marketing Solutions Help: Single image ads advertising specifications (shown as updated 3 months ago) (checked 4 Nov 2026)
- LinkedIn Help: Post and share updates (shown as updated 4 weeks ago) (checked 4 Nov 2026)
- LinkedIn Help: Save a post as a draft (shown as updated 4 weeks ago) (checked 4 Nov 2026)
- Davang Shah, LinkedIn Marketing Blog: How to Maximize AI Visibility for Your LinkedIn Posts (published 30 Jun 2026)
- Sprout Social: The Ultimate 2026 Social Media Image Sizes Guide (published 2 Nov 2026)