The Ultimate Guide to LinkedIn Post Image Sizes: Dimensions, Formats, and Best Practices

In the professional world, your visual content speaks before you do. Whether you are building a personal brand, running a company page, or executing a B2B marketing campaign, nothing kills momentum faster than a stretched, pixelated, or awkwardly cropped image on LinkedIn.

Because LinkedIn’s feed layout dynamically handles different orientations, mastering the correct pixel dimensions is the difference between a high-performing post that stops the scroll and one that gets instantly ignored.

This comprehensive guide breaks down the ideal LinkedIn post image sizes, aspect ratios, file requirements, and tactical tips to make your visuals stand out.

Quick Reference: The 3 Core LinkedIn Post Sizes

If you are in a rush and need to know what dimensions to export your graphics at right now, bookmark these three gold-standard layouts:

| Orientation | Recommended Size | Aspect Ratio | Best Used For |
| :— | :— | :— | :— |
| Square | 1080 × 1080 px | 1:1 | Infographics, quotes, headshots, and general feed posts. Safe for cross-platform sharing. |
| Portrait (Vertical) | 1080 × 1350 px | 4:5 | Document carousels, text-heavy graphics, and high-engagement mobile viewing. |
| Landscape | 1200 × 628 px (or 1200 × 627) | 1.91:1 | Link previews, wide photography, data charts. |

Detailed Breakdown by Format

1. Single Image Posts

Single image posts are the baseline of LinkedIn engagement. Depending on the story you are trying to tell, choose your format deliberately:

• Square (1080 × 1080 px): The safest, most versatile choice. It displays cleanly on both desktop and mobile without risking awkward edge crops.
• Portrait / Vertical (1080 × 1350 px): This is the tallest frame LinkedIn will render natively in the feed (4:5 ratio). Because it occupies more vertical screen estate on smartphones, it naturally commands more attention from scrollers. Avoid going taller than 4:5, or LinkedIn will automatically crop or pad your image.
• Landscape (1200 × 628 px): The traditional wide format. While it takes up less vertical room, it is ideal for landscape photography or screenshots that require a wide field of view.

2. Carousel & Document Posts (PDFs)

Document posts (commonly known as carousels or slide decks) are phenomenal for driving high dwell time and engagement on LinkedIn.

• Dimensions: Design your slides at 1080 × 1350 px (4:5 ratio) or 1080 × 1080 px (square).
• Format: Upload as a PDF.
• Technical Caps: Up to 300 pages max (though 8 to 15 pages is the sweet spot for audience retention) and a maximum file size of 100 MB.

3. Multi-Image Posts (2+ Images)

When you upload multiple images to a single post, LinkedIn arranges them into a grid layout.

• Pro-Tip: Consistency is key. Ensure every image in a multi-image post shares the exact same aspect ratio (preferably 1080 × 1080 px square).
• Avoid mixing landscape and portrait orientations in the same batch, as LinkedIn’s grid auto-cropping can cut off critical parts of your photos.

4. Link Preview Images

When you drop a URL into a LinkedIn text post, LinkedIn automatically pulls an Open Graph image from that web page.

• Dimensions: Ensure your website’s featured blog/article image is set to 1200 × 628 px (1.91:1).
• If your source image is too small (under 200 pixels wide), LinkedIn will shrink it into an unappealing tiny thumbnail on the left side of the link card.

Technical Specifications & Hard Limits

To avoid upload errors or sudden compression artifacts, keep these parameters in mind:

• Max File Size: Keep feed images under 5 MB (though up to 36 megapixels are technically supported).
• File Formats: JPG, PNG, WEBP, GIF, and HEIC are accepted. PNG is best for sharp text and graphics; JPG is ideal for photographs.
• Color Space: Always export your graphics in sRGB to prevent washed-out colors when viewed across different monitors and mobile screens.

Don’t Forget: Profile & Banner Sizes

While post images drive your daily reach, your profile assets form your digital storefront:

• Personal Profile Picture: Minimum 400 × 400 px (Square, rendered as a circle).
• Personal Background Banner: 1584 × 396 px (4:1 ratio). Note: Keep important text or logos centered, as the profile picture overlaps the bottom-left on desktop.
• Company Page Logo: 300 × 300 px.
• Company Page Cover Banner: 1128 × 191 px.

3 Golden Rules for Flawless LinkedIn Visuals

1. Keep Critical Text in the “Safe Zone”: Avoid placing tiny text, logos, or faces right on the extreme outer borders of your images. Different mobile viewports can slightly clip edges.
2. Design for Mobile First: Over 70% of LinkedIn traffic occurs on mobile devices. If your graphic looks cluttered on a phone screen, scale down the text and boost the contrast.
3. Match Ratio Over Raw Pixels: Doubling your pixel count (