The LinkedIn Shared Post size (1200×627px)
1200x627 pixels at 1.91:1 is the standard for LinkedIn feed images and link-share previews. Matching this ratio makes your shared articles render as a full-width banner in the feed rather than a small squished thumbnail, which matters on a platform where link posts are a core content type for professionals.
LinkedIn's audience is scanning between work tasks, so clarity outperforms flashiness. This wide format is ideal for a clean headline, a chart, or a single professional image. Because much of LinkedIn traffic is on desktop where the feed column is fairly wide, a 1200-pixel image stays crisp without inviting heavy recompression.
The common misstep is cramming a slide-deck's worth of text into the graphic. On mobile that copy collapses to an unreadable strip, and LinkedIn's preview can trim the edges when the card reflows. Keep any text short, high-contrast, and centered, and lean on one clear visual idea so your post communicates the moment it appears in a busy professional feed.