The Ultimate Guide to LinkedIn Post Dimensions (2026 Edition)

In the world of professional networking, visual content is no longer a nice-to-have—it’s essential. Whether you’re sharing a company milestone, publishing an industry infographic, or promoting a personal brand, the way your visual assets display can make or break your engagement.

Have you ever uploaded a crisp graphic, only to find it awkwardly cropped, pixelated, or cut off in the feed? That frustration usually boils down to one culprit: incorrect image dimensions.

Because LinkedIn frequently updates its layout across desktop and mobile devices, staying on top of the correct aspect ratios and pixel sizes is critical. This comprehensive guide covers everything you need to know about LinkedIn post dimensions to ensure your content always looks professional, polished, and eye-catching.

Why LinkedIn Image Dimensions Matter

Before diving into the numbers, it helps to understand why sizing matters so much on LinkedIn:

1. First Impressions Count: High-quality, perfectly proportioned images signal professionalism and attention to detail.
2. Algorithm Favoritism: Engaging visuals capture attention, stopping users from scrolling past. Higher engagement signals the LinkedIn algorithm to push your post to a broader audience.
3. Multi-Device Compatibility: Your audience views LinkedIn on everything from large desktop monitors to compact smartphones. Responsive sizing ensures your message isn’t lost in translation (or a bad crop).

1. Single Image Posts (Standard Link or Photo Shares)

Single image posts are the most common format on LinkedIn. They appear directly in the feed and take up prime visual real estate.

• Landscape (Horizontal):
  • Recommended Size: 1200 x 627 pixels
  • Aspect Ratio: 1.91:1
  • Best for: Sharing website links with preview cards or landscape landscape photography.
• Square:
  • Recommended Size: 1080 x 1080 pixels
  • Aspect Ratio: 1:1
  • Best for: General graphics, quotes, headshots, and balanced visual storytelling. Squares take up more vertical space in mobile feeds than landscape images, making them a safe and effective bet.
• Vertical (Portrait):
  • Recommended Size: 1080 x 1350 pixels (or 1080 x 1500 pixels)
  • Aspect Ratio: 4:5 or 4:3 (4:5 maximizes vertical real estate on mobile feeds)
  • Best for: Tall infographics, step-by-step guides, and deep-dive visual content. Portrait images dominate mobile screens, giving you a higher chance of stopping the scroll.

2. Carousel Posts (Document Shares)

Carousels—created by uploading multi-page PDF documents that users can swipe through—remain one of the highest-performing content formats on LinkedIn for organic reach and educational value.

• Square Document:
  • Recommended Size: 1080 x 1080 pixels
  • Aspect Ratio: 1:1
• Portrait Document:
  • Recommended Size: 1080 x 1350 pixels
  • Aspect Ratio: 4:5
• Pro-Tip for Carousels: Always export your design as a high-quality PDF before uploading it to LinkedIn. Avoid cramming too much text into a single slide; keep your fonts large (at least 24pt–30pt for body text) so they are legible on smaller mobile devices.

3. LinkedIn Stories (Discontinued, but Watch for Ephemera)

While LinkedIn officially retired its native “Stories” feature, temporary and fleeting visual formats continue to pop up across professional platforms in different ways. Always keep core vertical dimensions (1080 x 1920 pixels, 9:16 aspect ratio) in mind if short-form video or vertical features return to your creator toolkit.

4. Video Posts

Video content continues to surge in popularity on LinkedIn. Whether you’re sharing a thought-leadership clip, a product demo, or a webinar snippet, adhering to video specs prevents strange letterboxing or distortion.

• File Formats: MP4 is widely accepted.
• Max File Size: Up to 5 GB.
• Duration: From 3 seconds up to 10 minutes (though shorter, punchier videos typically retain higher retention rates).
• Aspect Ratios & Dimensions:
  • Horizontal (Landscape): 1920 x 1080 pixels (16:9 aspect ratio)
  • Square: 1080 x 1080 pixels (1:1 aspect ratio)
  • Vertical (Portrait): 1080 x 1350 or 1080 x 1920 pixels (4:5 or 9:16 aspect ratio)
• Best Practice: Always burn closed captions into your videos. A vast majority of users watch LinkedIn videos with the sound off while browsing at work or on the go.

5. Profile & Company Page Assets (Bonus Reference)

While this guide focuses primarily on posts, your overall profile presentation sets the stage for your content. Keep these companion dimensions handy:

• Personal Profile Picture: 400 x 400 pixels (min)
• Personal Background Banner: 1584 x 396 pixels
• Company Page Logo: 300 x 300 pixels
• Company Page Cover Image: 1128 x 191 pixels

Quick Checklist for Flawless LinkedIn Visuals

1. Design with Mobile in Mind: Over 60% of LinkedIn traffic originates from mobile devices. If an image looks cluttered or hard to read on a phone screen, simplify it.
2. Stick to Safe Zones: Keep essential text and logos centered or well away from the extreme edges of your templates to prevent accidental cropping.
3. Use PNG for Graphics, JPEG for Photos: PNG files maintain sharp text and clean lines for infographics and UI mockups, while JPEGs keep photographic file sizes manageable without losing noticeable quality.

By aligning your creative assets with these standard LinkedIn dimensions, you’ll elevate your brand’s aesthetic, improve readability, and give your content the visual edge it deserves.