The Ultimate Guide to LinkedIn Post Image Sizes: Master Dimensions for Maximum Engagement

Visual content on LinkedIn is no longer optional—it is a core driver of professional visibility. Whether you are building a personal brand, running targeted B2B campaigns, or managing a company page, the way your images render can make or break your reach.

When an image is incorrectly sized, LinkedIn’s algorithm automatically crops it, resulting in awkward framing, pixelation, or cut-off text that signals a lack of polish. Mastering the right dimensions ensures your content looks professional and captures attention in a crowded feed.

1. Core LinkedIn Post Image Sizes and Formats

LinkedIn supports several aspect ratios for standard feed posts. Choosing the right one depends heavily on your content type and whether your audience is primarily viewing via desktop or mobile.

| Format | Recommended Dimensions | Aspect Ratio | Best Used For |
| :— | :— | :— | :— |
| Portrait | 1080 × 1350 px | 4:5 | Infographics, step-by-step guides, high-impact visual content |
| Square | 1200 × 1200 px (or 1080 × 1080) | 1:1 | General announcements, single photos, clean graphics |
| Landscape | 1200 × 627 px | 1.91:1 | Shared link previews, cinematic photos, wide charts |

Why Portrait (4:5) Wins on Mobile

If your goal is maximum feed presence, the 1080 × 1350 px (4:5 ratio) format is your strongest weapon. Because most professionals browse LinkedIn on mobile devices, portrait images occupy more vertical screen space, forcing scrollers to slow down and engage with your post.

2. Specialized LinkedIn Image Dimensions

Beyond standard feed posts, different surface areas across the platform require precise configurations to avoid automated clipping:

• Shared Link Previews: 1200 × 627 px (1.91:1). When you paste a URL into a post, LinkedIn pulls an Open Graph image. If it deviates significantly from this ratio, it risks being reduced to a tiny square thumbnail or letterboxed.
• Carousels & Document Posts: 1080 × 1080 px (Square) or 1080 × 1350 px (Portrait) uploaded as a PDF file. Document carousels consistently yield high engagement rates on the platform.
• Profile Photos: 400 × 400 px minimum (1:1 ratio). Keep your face centered, as LinkedIn displays profile images within a circular frame.
• Background Banners: 1584 × 396 px (4:1 ratio) for personal profiles. Note that mobile viewports crop the edges of your banner, so keep essential branding and text elements in the middle third.

3. Technical Best Practices for Clean Uploads

Getting the pixel count right is only half the battle. Keep these technical guardrails in mind before hitting publish:

• File Size Limits: LinkedIn caps standard photo uploads at 5 MB (and up to 10 MB for multi-image or document slides). Keep your files optimized to prevent slow loading times.
• File Formats: Use JPEG for photographs and complex color gradients to keep file sizes low. Use PNG for crisp text-heavy graphics, UI mockups, or logos.
• Multi-Image Posts: When uploading multiple images (up to 20), maintain a uniform orientation (