LinkedIn Ad Sizes & Specs Guide

Master the Feed: The Ultimate Guide to LinkedIn Ad Sizes

When running B2B campaigns on LinkedIn, your creative can be brilliant, your targeting sharp, and your offer irresistible—yet if your image dimensions are off, your ad will look blurry, get cropped awkwardly, or fail to capture attention.

Because LinkedIn serves professionals browsing across ultra-high-definition desktop monitors and fast-scrolling mobile screens, getting your pixel dimensions right is non-negotiable. Here is the complete breakdown of LinkedIn ad sizes and specifications to ensure your campaigns look pristine.

1. Single Image Ads (Sponsored Content)

Single image ads are the most common format in the LinkedIn feed. They offer three distinct aspect ratios depending on how you want to occupy screen space:

• Landscape (1.91:1): 1200 × 628 pixels. Works smoothly across both desktop and mobile feeds.
• Square (1:1): 1200 × 1200 pixels. A reliable, high-impact choice that takes up more vertical real estate on mobile devices.
• Vertical (4:5): 720 × 900 pixels (or up to 1200 × 1500 pixels). Ideal for mobile-first delivery, capturing maximum attention as users scroll with their thumbs.

File requirements: JPG, PNG, or GIF format; maximum file size of 5 MB.

2. Carousel Ads

Carousel ads let you showcase a swipeable sequence of 2 to 10 cards, making them perfect for step-by-step guides, product features, or breaking down a complex case study.

• Card Dimensions: 1080 × 1080 pixels (1:1 square ratio).
• File Requirements: JPG or PNG; up to 10 MB per card.
• Pro Tip: Keep visual styling consistent across all cards to maintain a cohesive narrative flow as users swipe.

3. Video Ads

Video is a powerful tool for driving engagement, but mismatched resolutions will trigger unwanted black bars (letterboxing) or blurry scaling. LinkedIn supports multiple video orientations:

• Landscape (16:9): 1920 × 1080 pixels.
• Square (1:1): Up to 1920 × 1920 pixels.
• Vertical (4:5): 720 × 900 pixels recommended (up to 1080 × 1350 pixels).
• Vertical (9:16): Up to 1080 × 1920 pixels.

File requirements: MP4 format, file sizes ranging from 75 KB up to 500 MB, with durations from 3 seconds to 30 minutes (though shorter, punchier videos perform best in-feed).

Quick Reference: LinkedIn Ad Dimensions at a Glance

| Ad Format | Recommended Dimensions | Max File Size | Accepted File Types |
| :— | :— | :— | :— |
| Single Image (Square) | 1200 × 1200 px | 5 MB | JPG, PNG, GIF |
| Single Image (Landscape) | 1200 × 628 px | 5 MB | JPG, PNG, GIF |
| Carousel Card | 1080 × 1080 px | 10 MB per card | JPG, PNG |
| Video Ad | Up to 1920 × 1080 px (16:9) | 500 MB | MP4 |
| Text Ad Logo | 100 × 100 px | 2 MB | JPG, PNG |
| Spotlight / Message Banner | 300 × 250 px | 2 MB | JPG, PNG |

Best Practices for Flawless LinkedIn Ads

1. Design for Mobile First: Over 60% of LinkedIn traffic happens on mobile devices. Square (1:1) and vertical (4:5) formats dominate mobile screen space far better than old-school landscape crops.
2. Watch the Safe Zones: Avoid placing critical text, logos, or CTAs right along the extreme edges of your canvas, where dynamic UI elements or platform overlays might clip them.
3. Export at High Resolution: Always export your creative at the highest recommended pixel count. LinkedIn’s compression handles high-res files much better than upscaling small, pixelated uploads.