Nobody talks about linkedin image size, which is exactly why so many LinkedIn images look terrible. Cropped logos. Blurry banners. Text cut in half. The specs exist. Nobody reads them.
Link shares want 1200 by 627, the standard that previews correctly. For image posts, the linkedin post image dimensions and file size limit that earn the most feed space skew vertical, around 1080 by 1350. Company page logos want a clean square, 300 by 300, with the actual logo kept well inside the edges so nothing gets clipped. None of this is hard. It's just ignored.
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For companies running a serious LinkedIn presence, this is an audit problem. A brand account spec audit SaaS approach means checking every profile asset against current specs on a schedule, not discovering the cropped banner six months later. Agencies do the same thing manually, but at scale the spreadsheet breaks. Catching one bad logo crop across fifty company pages pays for the discipline, honestly.
The file size limit is generous enough that you'll rarely hit it, but LinkedIn's compression is aggressive. Upload the highest quality you have and let the platform do its worst. Starting from a clean source matters more here than on most platforms. This is the thing people get backwards: they compress before uploading, then LinkedIn compresses again, and the result is soup.
LinkedIn video is underused and worth trying. Native uploads get solid reach, and the specs are forgiving. Horizontal or vertical both work, though square-ish tends to look best in the feed. Keep it captioned. Most LinkedIn video is watched on mute in an office. A one-minute captioned clip can outperform a text post, which surprises people who think of LinkedIn as text-only.
If you're publishing at volume and you're technical, a SaaS API for platform spec compliance validates every asset before it goes live. Banner, logo, post image, video, all checked against current numbers. But the real LinkedIn mistake isn't technical, it's aesthetic. Tiny text in images becomes unreadable in the feed. If your image needs a magnifying glass, rewrite it as text in the post instead. Readability wins.
Current specs and file limits are at easyimagevideo.com. And if you'd rather outsource all of this, send one video and we'll return it formatted for LinkedIn and every other platform.