The Ultimate Guide to LinkedIn Post Dimensions and Sizes

First impressions matter—especially in a crowded professional feed where users spend mere seconds deciding whether to stop scrolling or keep moving. Whether you are building a personal brand, launching a product, or driving company growth, uploading images and videos with the correct dimensions ensures your content looks crisp, professional, and entirely uncropped.

1. Single Image Posts and Link Previews

Single images are the workhorses of the LinkedIn feed. How your image appears depends heavily on the aspect ratio you choose. Choosing the right layout can dramatically impact engagement.

• Landscape (1.91:1) — 1200 x 627 pixels: This is the gold standard for link previews (the image that populates when you share an external URL). It also works well for news updates and horizontal graphics.
• Square (1:1) — 1080 x 1080 pixels (or 1200 x 1200 pixels): A safe, versatile choice that looks balanced on both desktop and mobile screens without unexpected cropping.
• Portrait / Vertical (4:5) — 1080 x 1350 pixels: The favorite format for mobile-first storytelling. Because most LinkedIn browsing happens on smartphones, a tall 4:5 image physically takes up more screen space, forcing readers to slow their scroll.

Key File Rules:

• Max File Size: 5MB
• Accepted Formats: JPG, PNG, or GIF
• Color Profile: sRGB (LinkedIn tends to ignore CMYK)

2. Document Carousels and PDF Sliders

Document posts (often uploaded as PDFs) have transformed into one of the most viral formats on LinkedIn. They invite readers to swipe through slide by slide, keeping them engaged longer.

• Recommended Slide Dimensions: 1080 x 1350 pixels (4:5 aspect ratio) for maximum mobile impact, or 1080 x 1080 pixels (1:1 square).
• Maximum File Size: 100MB
• Maximum Page Count: 300 pages (though 5 to 12 slides usually hits the sweet spot for engagement).
• Format: PDF

Pro Tip for Carousels: Keep your body font size at 24pt or larger, and headlines at 40pt+. LinkedIn renders document previews quite small on mobile screens, and small text will immediately kill your read-through rates.

3. Native Video Specifications

Video content continues to command higher attention spans, but uploading the wrong orientation can lead to awkward black bars or cut-off frames.

• Landscape (16:9) — 1920 x 1080 pixels: Best for traditional desktop viewing, webinar recordings, and talking-head clips.
• Vertical / Portrait (9:16) — 1080 x 1920 pixels: Ideal for Reels-style, mobile-first video content that fills the entire phone screen.
• Square (1:1) — 1080 x 1080 pixels: A reliable middle ground that adapts well across devices.

Key File Rules:

• Max File Size: 5GB
• Duration: 3 seconds to 10 minutes
• Formats: MP4, MOV, or WebM (MP4 with H.264 video and AAC audio is universally safest)

4. Profile and Cover Banners

Before users even look at your posts, they will look at your profile or company page. Keeping these canvas spaces properly proportioned prevents awkward stretching.

• Personal Profile Picture: 400 x 400 pixels (1:1 square, though displayed as a circle). Max size 3MB.
• Personal Cover Photo: 1584 x 396 pixels (4:1 aspect ratio). Max size 8MB. Keep in mind that your profile picture overlaps the bottom-left corner of the cover photo on desktop, so avoid placing critical text or logos there.
• Company Page Logo: 400 x 400 pixels.
• Company Cover Banner: 1512 x 256 pixels.

Quick-Reference Cheat Sheet

| Content Type | Recommended Dimensions | Aspect Ratio | Max File Size | Format |
| :— | :— | :— | :— | :— |
| Landscape / Link Preview | 1200 x 627 pixels | 1.91:1 | 5MB | JPG, PNG |
| Square Post Image | 1080 x 1080 pixels | 1:1 | 5MB | JPG, PNG |
| Portrait Post Image | 1080 x 1350 pixels | 4:5 | 5MB | JPG, PNG |
| Document Carousel | 1080 x 1350 pixels | 4:5 | 100MB | PDF |
| Native Video (Vertical) | 1080 x 1920 pixels | 9:16 | 5GB | MP4, MOV |
| Personal Cover Banner | 1584 x 396 pixels | 4:1 | 8MB | JPG, PNG |

Final Quality Tips

LinkedIn automatically compresses uploaded media to optimize platform speed. To prevent your graphics from turning blurry, export your designs at exact pixel dimensions rather than uploading oversized files expecting the platform to shrink them cleanly. Stick to high-contrast layouts, keep your text minimal, and let these dimensions do the heavy lifting to elevate your professional presence.