The Ultimate Guide to LinkedIn Post Image Sizes

When you are scrolling through LinkedIn, a crisp, perfectly formatted graphic or photo immediately catches your eye. Conversely, an image with text chopped off at the edges or blurry pixels instantly screams “unprofessional.”

Because over half of LinkedIn’s traffic comes from mobile devices, nailing your image dimensions is essential for keeping your audience engaged. This guide breaks down the exact image sizes you need for LinkedIn posts, link previews, and carousels so your content always looks its best.

1. Standard Post Image Sizes

The right dimensions depend entirely on the orientation you choose for your visuals.

| Format | Recommended Dimensions | Aspect Ratio | Best Used For |
| :— | :— | :— | :— |
| Square | $1080 times 1080$ px | $1:1$ | Infographics, quotes, and standard feed photos |
| Portrait | $1080 times 1350$ px | $4:5$ | Thumb-stopping vertical graphics and tutorials |
| Landscape | $1200 times 627$ px | $1.91:1$ | Landscape photography and data charts |

• Square ($1080 times 1080$ px): This is the ultimate “safe bet” for the LinkedIn feed. It takes up a healthy amount of space on both desktop and mobile without risking awkward crops.
• Portrait ($1080 times 1350$ px): If you want to dominate mobile screen real estate, go vertical. This format forces users to slow down their scroll because it takes up more vertical room.
• Landscape ($1200 times 627$ px): This is your go-to standard for sharing wider images or photos where horizontal composition matters.

2. Link Preview Images

If you are sharing an external blog post, website, or news article, LinkedIn automatically generates a preview card using the target page’s Open Graph image.

• Recommended Size: $1200 times 627$ pixels ($1.91:1$ aspect ratio).
• Pro Tip: Always ensure your destination website features an image set to this exact dimension. If your link preview image is too small or improperly formatted, LinkedIn will shrink it into a tiny thumbnail next to your text, drastically lowering your click-through rate.

3. Carousel and Document Post Sizes

Document posts (often uploaded as PDFs that users click through like carousels) are some of the highest-performing content formats on LinkedIn. To keep them looking seamless:

• Square Carousels: $1080 times 1080$ pixels ($1:1$ ratio)
• Portrait Carousels: $1080 times 1350$ pixels ($4:5$ ratio)
• File Requirements: Save your design as a high-quality PDF before uploading. Keep each slide consistent—never mix square and portrait slides in the same document, or the display will jump awkwardly for the reader.

Quick Technical Checklist for Success

To prevent LinkedIn’s compression algorithm from ruining your graphics, keep these rules of thumb in mind:

File Formats: Use PNG for graphics, charts, and images containing text to keep lines sharp and clean. Use JPEG for standard photographs to keep file sizes low.

File Size Limits: Keep your individual image files under 5MB to ensure fast loading times across all network connections.

By aligning your designs with these dimensions, you ensure your content looks polished, professional, and optimized for maximum engagement.