The Ultimate Guide to LinkedIn Post Dimensions (2026 Edition)

Whether you are building a personal brand, recruiting top talent, or driving B2B leads for your enterprise, LinkedIn is the premier digital ecosystem for professional networking. However, cutting through the noise on the feed requires more than just a strong hook or compelling copy—it demands visual polish.

Nothing screams “amateur hour” faster than a pixelated banner, a cropped infographic, or a profile picture with your head awkwardly cut off at the chin. When your visual assets are optimized correctly, they capture attention instantly, retain user engagement, and signal credibility.

Here is your comprehensive, up-to-date guide to mastering LinkedIn post dimensions and image sizes for maximum impact.

Why LinkedIn Image Dimensions Matter

LinkedIn’s algorithm favors content that keeps users engaged. When visuals render cleanly without awkward compression or unexpected cropping, users are more likely to stop scrolling, read, click, and share. Furthermore, professional presentation builds immediate trust. Clean graphics reflect an eye for detail—a trait valued in any industry.

1. Single Image Posts (Standard & Square)

Single-image posts are the most versatile weapon in your content arsenal. They accompany thought-leadership articles, company updates, event promotions, and announcements.

• Landscape (Horizontal): 1200 x 627 pixels (Aspect Ratio: 1.91:1)
  • Best for: Link previews and landscape photography. When sharing a blog post or website link, LinkedIn often pulls a preview image at this dimension.
• Square: 1080 x 1080 pixels (Aspect Ratio: 1:1)
  • Best for: Standard graphic design cards, quotes, and product shots. Square images take up ample vertical real estate on mobile feeds, making them highly effective.
• Vertical / Portrait: 1080 x 1350 pixels (Aspect Ratio: 4:5)
  • Best for: Stopping the scroll. Vertical images occupy the maximum vertical space allowed on a mobile feed without getting cut off, giving your content a massive visibility boost.

2. Document Posts (Carousels and PDFs)

LinkedIn document posts (often uploaded as PDFs that render as swipeable carousels) are currently one of the highest-performing content formats for organic reach and education.

• Square Carousel: 1080 x 1080 pixels (1:1)
• Portrait Carousel: 1080 x 1350 pixels (4:5)
• File Format: PDF (recommended)
• Pro Tip: Keep your text legible with a font size of at least 24pt, use high-contrast color palettes, and include a clear call-to-action on your final slide (