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There is no universal pixel-size recommendation in LinkedIn’s located official guidance for an organic, image-only feed post. The right documented size depends on the surface: LinkedIn recommends 1200 × 627 px for a custom image attached to a Page post with a URL, while its separate Sponsored Content ad specifications give dimensions for landscape, square, and vertical ads. Those values are not interchangeable. For an ordinary single-photo post, follow LinkedIn’s general upload limits and preview the image on the device you plan to use.

Which LinkedIn image size should you use?

First identify what you are publishing. A photo uploaded directly to an organic feed post, an image accompanying a URL in a LinkedIn Page post, and a paid single-image ad are different publishing surfaces. LinkedIn publishes specific dimensions for the latter two, but its general media guidance does not give one universal recommended pixel size for an organic image-only post. LinkedIn’s supported-media guidance instead documents upload limits and file formats.

Publishing surface LinkedIn’s documented image guidance What to use it for
Organic image-only feed post No universal recommended pixel dimensions stated in the located general media guidance; maximum file size 100 MB and maximum image resolution 36 megapixels. A photo uploaded as the post image, not a URL preview or paid ad.
Custom image attached to a LinkedIn Page post with a URL 1.91:1 ratio; 1200 × 627 px recommended. A custom image accompanying a URL in a Page post.
Sponsored Content single-image ad Landscape 1200 × 628 px; square 1200 × 1200 px; vertical 720 × 900 px recommended. A paid single-image ad, subject to its own size, file-type, and placement specifications.

The linked-Page-image recommendation and ad dimensions are official specifications for those named surfaces, not a general rule for every organic photo post. LinkedIn also says an organic Page post can look different after sponsorship, so do not assume that an organic preview establishes exactly how the sponsored asset will appear. LinkedIn explains differences between organic posts and Sponsored Content.

Organic single-image posts: what LinkedIn actually specifies

For an image-only organic post, use the general media rules rather than borrowing the ad’s 5 MB cap or the linked-Page image’s aspect ratio as if either were an organic-post requirement. LinkedIn’s general shared-media guidance sets a maximum file size of 100 MB and a maximum image resolution of 36 megapixels. It does not publish a universal recommended width, height, or aspect ratio for the organic single-image feed post in the guidance located for this article. Check LinkedIn’s current media-format and upload page before publishing if a particular format or device is critical, since that help table is maintained by LinkedIn and can change.

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Practical preparation when there is no official pixel target

  1. Start with the image’s intended crop. Compose the subject and any essential text so the important content is not dependent on a narrow edge area. The official organic-media guidance does not promise that every image proportion will render identically across devices.
  2. Keep a clean, high-quality source file. Export an image that is legible at the size at which people will view it, while remaining under LinkedIn’s general 100 MB and 36-megapixel maximums. Those are ceilings, not recommended export targets.
  3. Upload and inspect the actual post preview. Check the resulting composition on the device or LinkedIn app you intend to use. This is a practical check, not a guarantee of identical rendering on all screens.
  4. Do not resize to 1200 × 627 solely because it is a familiar LinkedIn number. That recommendation is specifically for a custom image on a Page post with a URL. It may be a suitable design choice for that use, but LinkedIn does not designate it as the universal size for an image-only organic post.

File formats vary by device

LinkedIn’s general supported-media table is device-specific. The most recently surfaced table lists JPEG, PNG, GIF, and WEBP for desktop, iOS, and Android; HEIF/HEIC is listed for iOS. Because supported formats can change and may differ by upload device, confirm the current entry in LinkedIn’s format table before choosing an unusual or device-specific file type. The ad specification separately lists JPG, PNG, or GIF for its paid single-image ads; that ad list should not be assumed to replace the general organic-upload table.

Page post with a URL: use 1200 × 627 px

For a custom image attached to a LinkedIn Page post with a URL, LinkedIn recommends an aspect ratio of 1.91:1 (1200 × 627 px). This is the case where the commonly quoted 1200 × 627 size applies. The instruction is not a general specification for uploading a photo as an image-only post. See LinkedIn’s Page and Career Page image specifications.

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LinkedIn’s Page guidance says an image narrower than 200 px appears as a thumbnail on the left of the post; the page notes that this does not apply to image-only or image-and-text posts. It also says mobile images are not cropped, and other ratios appear at full size with subtle white padding. Those rendering notes belong to the URL-linked Page-image guidance, so do not treat them as a promise about every organic feed image or paid placement.

Sponsored Content ads: three orientation-specific sizes

For paid single-image ads, use the specification for the selected ad orientation. LinkedIn’s ad page provides recommended dimensions, ranges, a file-size cap, and format guidance. See LinkedIn’s single image ads advertising specifications.

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Ad orientation Recommended ratio and size Stated dimension range
Landscape 1.91:1; 1200 × 628 px Minimum 640 × 360 px; maximum 7680 × 4320 px
Square 1:1; 1200 × 1200 px Minimum 360 × 360 px; maximum 4320 × 4320 px
Vertical 4:5; 720 × 900 px Minimum 360 × 640 px; maximum 2430 × 4320 px

For these ads, LinkedIn specifies JPG, PNG, or GIF and a 5 MB maximum file size. It says images under 401 px wide display as a thumbnail. LinkedIn recommends vertical aspect ratios for single-image ads, while stating that paid vertical assets serve only on mobile devices. These are ad-specific conditions, not organic-post requirements.

Why the 1200 × 627 and 1200 × 628 figures differ

Both dimensions are associated with a 1.91:1 landscape shape, but LinkedIn publishes them in different contexts: 1200 × 627 px for a custom image in a Page post with a URL, and 1200 × 628 px for a landscape Sponsored Content ad. Use the value listed for the surface you are preparing rather than silently substituting one for the other.

How to choose the right size without mixing specifications

  1. Is it an organic photo uploaded directly to a post? The located official general-media guidance does not supply a universal recommended pixel size. Observe its 100 MB and 36-megapixel limits and verify the displayed preview.
  2. Is it a custom image accompanying a URL in a LinkedIn Page post? Prepare 1200 × 627 px at 1.91:1, following the Page-image guidance.
  3. Is it a paid Sponsored Content single-image ad? Select landscape, square, or vertical, then use the matching recommended dimensions and confirm the ad’s other requirements.
  4. Is the same asset going to be used organically and as an ad? Do not assume one crop is optimal for both. LinkedIn notes organic Page posts may look different when sponsored; prepare and review the asset for each placement.

The useful comparison is therefore not “which one LinkedIn size is correct?” but “which LinkedIn surface, orientation, and upload path is this image for?” The official dimensions are surface-specific, while the organic image-only guidance is expressed as upload limits and supported formats.

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ScreenshotNeo is a website screenshot API and MCP server for developers, not a LinkedIn image-resizing tool and not a substitute for checking the LinkedIn app’s actual post preview. If your workflow includes capturing a web page that presents a creative or post mockup, a single request can return a screenshot; it cannot establish how LinkedIn will render an uploaded image in every feed.

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For example, this cURL request captures the Stripe website as a WebP file. Replace the target URL with the web page you want to capture. See the ScreenshotNeo documentation for request options.

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Common sizing mistakes

  • Using 1200 × 627 as the universal organic-photo size: it is LinkedIn’s recommendation for the custom URL image in a Page post, not a general image-only-post rule.
  • Using ad dimensions without labeling them as ad dimensions: 1200 × 628, 1200 × 1200, and 720 × 900 are Sponsored Content recommendations for different orientations.
  • Applying the 5 MB ad cap to all uploads: LinkedIn’s general shared-media page gives a separate 100 MB maximum file size for general media.
  • Assuming one file type works on every upload device: check the device-specific format table, especially for HEIF/HEIC or other formats beyond JPEG and PNG.
  • Expecting an identical preview across organic and paid placements: LinkedIn documents that an organic Page post can look different after sponsorship. Review the asset in the intended placement.

Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.

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