The Ultimate Guide to LinkedIn Post Image Sizes: Stop Letting Bad Dimensions Ruin Your Reach

You’ve spent an hour crafting the hook, refining your insights, and ensuring your tone strikes the exact balance between professional and approachable. You hit publish, attach your graphic, and walk away feeling proud.

Then, you check the post on your phone.

Your graphic’s headline is abruptly chopped off at the edges, a crucial logo is hidden behind a UI button, or your image is a blurry, pixelated mess. Why? Because you fell victim to the most common trap in social media marketing: ignoring platform-specific image dimensions.

On a professional network like LinkedIn, visual quality equals credibility. If your images look amateurish or ill-fitted, readers subconsciously question the quality of your insights.

Mastering LinkedIn post image sizes is non-negotiable if you want to stop the scroll. This comprehensive guide breaks down the exact dimensions you need for every format.

1. The Core LinkedIn Post Image Sizes (Feed Posts)

When you upload a standard standalone image to your LinkedIn feed, you have three primary layout choices. Each serves a different tactical purpose.

| Format | Recommended Dimensions | Aspect Ratio | Best Used For |
| :— | :— | :— | :— |
| Square | $1080 times 1080$ pixels | 1:1 | Infographics, quote cards, and general multipurpose posts. |
| Portrait / Vertical | $1080 times 1350$ pixels | 4:5 | Maximum mobile feed dominance and higher engagement. |
| Landscape | $1200 times 627$ pixels | 1.91:1 | Link previews and traditional horizontal graphics. |

Which one should you pick?

• The Safe Bet (Square – $1080 times 1080$ px): If you are short on time and want a format that renders reliably across both desktop and mobile devices without unpleasant cropping surprises, stick to square.
• The Growth Play (Portrait – $1080 times 1350$ px): Because over half of LinkedIn traffic originates on mobile phones, vertical images take up significantly more vertical screen space. More real estate means more eyeballs—making portrait the favorite format for top-tier creators looking to maximize engagement.
• The Link Preview (Landscape – $1200 times 627$ px): This is your go-to when sharing external URLs, blogs, or news articles. LinkedIn automatically generates a landscape card, so matching this aspect ratio ensures your preview image looks crisp.

2. Specialized LinkedIn Formats

Standard single images are only part of the equation. If you regularly utilize carousels, documents, or video content, strict sizing rules apply here as well.

• Carousel Posts & Document PDFs: To keep your slide decks looking sharp and uniform, design your slides at $1080 times 1080$ pixels (Square) or $1080 times 1350$ pixels (Portrait). Save or export them as high-quality PDFs before uploading.
• Native Video: LinkedIn supports horizontal, square, and vertical video. For the best balance of quality and mobile-friendliness, upload videos at $1920 times 1080$ pixels (Landscape) or $1080 times 1080$ pixels (Square), keeping file sizes under 5 GB.

3. Profile & Brand Real Estate (Don’t Forget Your Banners!)

Your post graphics catch attention in the feed, but your profile and company page are your digital storefronts. Make sure they aren’t cropped weirdly by using these baseline dimensions:

• Personal Profile Picture: $400 times 400$ pixels (displays in a circular crop, so keep your face or logo centered).
• Personal Background / Cover Banner: $1584 times 396$ pixels (4:1 aspect ratio). Pro tip: On mobile devices, the left side of your banner can be partially covered by your profile photo, so keep vital branding and text shifted toward the center-right.
• Company Page Cover Photo: $1128 times 191$ pixels.

4. Technical Best Practices for Flawless Uploads

Getting the pixel dimensions right is half the battle. To ensure LinkedIn’s compression algorithm doesn’t turn your masterpiece into a fuzzy block of pixels, keep these rules in mind:

1. File Formats: Stick to PNG for graphics, charts, and images containing text (it prevents text artifacting). Use JPEG for photographs where smaller file sizes are preferred.
2. File Size Limits: Most single image posts cap out at a maximum file size of 5 MB. Ensure your design software doesn’t export uncompressed behemoths that fail to upload.
3. Design Safely: Always leave a small padding or “safe zone” around the borders of your text graphics. Avoid placing critical text or logos right on the extreme edges, as slight layout adjustments across different mobile operating systems can clip them.

The Takeaway: Great content deserves great presentation. By standardizing your workflow around $1080 times 1350$ px (Portrait) for maximum mobile impact or $1080 times 1080$ px (Square) for consistency, you ensure your professional brand always looks polished, intentional, and ready for business.