LinkedIn Ad Sizes & Specs (2026)
LinkedIn ad creative is built in Campaign Manager and skews professional and text-forward, so the image is usually supporting a value proposition rather than carrying it alone. The workhorse format is the Single Image (Sponsored Content) ad, where a 1200 × 627 (1.91:1) landscape or a 1200 × 1200 (1:1) square both perform well — square increasingly wins because it occupies more of the mobile feed. LinkedIn also runs right-rail and dynamic Spotlight ads with much smaller, logo-driven creative, so keep brand marks legible at small sizes.
LinkedIn ad specifications
| Placement | Dimensions (px) | Aspect ratio | Max file size | File types | Headline | Body text | Notes |
|---|---|---|---|---|---|---|---|
| Single image (square) | 1200 × 1200 | 1:1 | 5 MB | JPG, PNG, GIF | 70 chars | 150 chars | Best mobile footprint for Sponsored Content. |
| Single image (landscape) | 1200 × 627 | 1.91:1 | 5 MB | JPG, PNG, GIF | 70 chars | 150 chars | Classic link-share ratio; strongest on desktop feed. |
| Single image (vertical) | 628 × 1200 | 1:1.91 | 5 MB | JPG, PNG, GIF | 70 chars | 150 chars | Vertical mobile placement; not shown on desktop. |
| Carousel card | 1080 × 1080 | 1:1 | 10 MB | JPG, PNG | — | 45 chars | 2–10 square cards; each card headline up to ~45 characters. |
| Spotlight ad (dynamic) | 100 × 100 | 1:1 | 2 MB | JPG, PNG | — | — | Right-rail logo image; small, so use a clean square logo. |
Last verified July 5, 2026. Specs change often — always confirm against the official sources below before shipping.
Tips for LinkedIn ad creative
- Use 1200 × 1200 (1:1) for Sponsored Content when you want maximum mobile footprint; 1200 × 627 (1.91:1) reads better on desktop.
- Introductory text shows about 150 characters before “see more” on desktop and less on mobile — put the point first.
- Headlines over ~70 characters get truncated under the image; keep them tight and benefit-led.
- For a B2B audience, legible value-prop text and a clean logo beat busy lifestyle imagery.
LinkedIn ad size FAQ
What size is a LinkedIn ad?+
The recommended LinkedIn Single Image ad size is 1200 × 1200 pixels (1:1) or 1200 × 627 pixels (1.91:1). Square takes more space in the mobile feed, while the 1.91:1 landscape reads well on desktop. Both keep the creative sharp when uploaded at full resolution.
What is the best LinkedIn ad size in 2026?+
For Sponsored Content, 1200 × 1200 pixels (1:1) is generally the best size because most LinkedIn engagement is on mobile, where square occupies more screen. Use 1200 × 627 pixels if your audience skews desktop.
What is the maximum file size for a LinkedIn image ad?+
A LinkedIn Single Image ad can be up to 5 MB in JPG, PNG or GIF format. Carousel cards allow up to 10 MB each. Stay well under the limit to keep load times fast.
How much text can a LinkedIn ad have?+
LinkedIn shows roughly 150 characters of introductory text before a “see more” link, and headlines display best under about 70 characters. Lead with your core value proposition so it appears before any truncation.
What size are LinkedIn carousel ad cards?+
LinkedIn carousel cards are square at 1080 × 1080 pixels (1:1), and a carousel can hold 2 to 10 cards. Each card can carry its own short headline of about 45 characters and its own destination link.
Official sources
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