LinkedIn advertising offers unique access to professional audiences and B2B decision-makers. But the platform has specific ad size requirements that differ from consumer-focused social networks. This guide covers every LinkedIn ad format with exact specifications.
Why LinkedIn Ad Sizes Require Special Attention
LinkedIn is predominantly a desktop-first platform for many users, unlike Instagram or TikTok. This means your ads need to look great on larger screens while still performing on mobile. Additionally, LinkedIn's professional context demands polished, high-quality creative.
Sponsored Content - Single Image
Single image ads appear in the LinkedIn feed on both desktop and mobile:
- Recommended size: 1200 x 627 pixels
- Aspect ratio: 1.91:1
- Minimum size: 400 x 400 pixels
- File type: JPG or PNG
- Maximum file size: 5MB
Text Specifications
- Headline: Up to 200 characters (70 recommended)
- Introductory text: Up to 600 characters (150 recommended)
Sponsored Content - Carousel
Carousel ads allow multiple cards that users can swipe through:
- Card size: 1080 x 1080 pixels
- Aspect ratio: 1:1
- Number of cards: 2-10
- File type: JPG or PNG
Sponsored Content - Video
- Recommended size: 1920 x 1080 pixels (16:9) or 1080 x 1080 (1:1)
- Minimum size: 480 x 360 pixels
- Aspect ratios supported: 16:9, 1:1, 9:16, 4:5
- Length: 3 seconds to 30 minutes (15-30 seconds recommended)
- File type: MP4
- Maximum file size: 200MB
Message Ads (InMail)
Message Ads appear directly in LinkedIn member inboxes:
- Banner image: 300 x 250 pixels
- File type: JPG or PNG
- Maximum file size: 2MB
- Message body: Up to 1,500 characters
Text Ads
Text Ads appear in the right column and top banner on desktop:
- Image size: 100 x 100 pixels
- Aspect ratio: 1:1
- Headline: Up to 25 characters
- Description: Up to 75 characters
Dynamic Ads
Dynamic Ads personalize creative using profile data:
Follower Ads
- Company logo: 100 x 100 pixels
- Headline: Up to 50 characters
- Company name: Up to 25 characters
Spotlight Ads
- Company logo: 100 x 100 pixels
- Background image: 300 x 250 pixels
- Headline: Up to 50 characters
- Description: Up to 70 characters
Document Ads
Document Ads allow users to preview and download PDFs, PowerPoints, and other documents:
- File types: PDF, DOC, DOCX, PPT, PPTX
- Maximum file size: 100MB
- Maximum pages: 300 pages
Event Ads
- Event image: 1200 x 627 pixels
- Aspect ratio: 1.91:1
LinkedIn Ad Creative Best Practices
Professional Quality is Expected
LinkedIn audiences expect polished content. Unlike TikTok where raw, authentic content performs well, LinkedIn rewards professional imagery and clean design.
Lead with Value
B2B audiences are often in research mode. Ads that offer genuine value — insights, data, resources — outperform pure promotional content.
Use Faces
Even on a professional platform, human faces drive engagement. Feature real people (employees, customers, thought leaders) when possible.
Clear CTAs
B2B buyers often need more information before converting. CTAs like "Download Guide," "Register for Webinar," or "Learn More" often outperform "Buy Now."
LinkedIn Ad Size Quick Reference
| Ad Format | Size (pixels) | Aspect Ratio |
|---|---|---|
| Sponsored Image | 1200 x 627 | 1.91:1 |
| Sponsored Carousel | 1080 x 1080 | 1:1 |
| Sponsored Video | 1920 x 1080 | 16:9 |
| Message Ad Banner | 300 x 250 | 1.2:1 |
| Text Ad | 100 x 100 | 1:1 |
| Dynamic Ad Logo | 100 x 100 | 1:1 |
Generate LinkedIn Ads That Drive Results
B2B advertising requires a different approach than consumer marketing. Ad Fuse AI generates professional LinkedIn ad creative that resonates with decision-makers, formatted perfectly for every placement. Elevate your B2B campaigns today with our Ai Ad Creative Generator. Learn more about Linkedin Ads Ai and discover How To Scale Ad Creatives effectively.