LinkedIn single image ad specs
All three ratios are accepted but they do not reach the same screens: vertical images are not delivered on desktop. Sizes, minimums, maximums and device coverage are all here.
LinkedIn single image · horizontal
- Recommended ratio
- 1.91:1
- Recommended size
- 1200 × 628 px
- Minimum size
- 640 × 360 px
- Maximum size
- 7680 × 4320 px
- File type
- JPG, PNG, GIF
- File size
- ≤ 5 MB
Horizontal images are delivered on both desktop and mobile.
LinkedIn single image · square
- Recommended ratio
- 1:1
- Recommended size
- 1200 × 1200 px
- Minimum size
- 360 × 360 px
- Maximum size
- 4320 × 4320 px
- File type
- JPG, PNG, GIF
- File size
- ≤ 5 MB
The source recommends this ratio for delivery across desktop and mobile.
LinkedIn single image · vertical
- Recommended ratio
- 4:5
- Recommended size
- 720 × 900 px
- Minimum size
- 360 × 640 px
- Maximum size
- 2430 × 4320 px
- File type
- JPG, PNG, GIF
- File size
- ≤ 5 MB
Vertical images do not deliver to desktop. 1:1.91 is still supported but gets bars on each side, so the source recommends 4:5 to avoid them.
A recommendation is not a requirement: below the minimum a file is refused, while missing the recommended size only affects how sharp the ad looks.
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What this page covers
- This first version covers the single image ad only; video, carousel and message ads are not added until their own official pages are verified.
- Vertical images do not deliver to desktop, so choosing a ratio is a reach decision, not only a visual one.
- The text lengths appear under the source's recommendations heading, and the character counter uses the same numbers.
Tools that use these specs
About LinkedIn ads
Which ratio should I pick?
The source recommends square when you want both desktop and mobile. Vertical is suggested for a stronger mobile click-through, but it does not appear on desktop.
Why do vertical images get side bars?
1:1.91 vertical images are still supported, but bars are added on each side so they fit the frame. The source recommends 4:5 if you want to avoid them.
Is the description field always required?
No; the source states it is only required when you use the Audience Network.
Where the numbers on this page come from
All of them from the platform's own documentation. Follow the link and read the same line yourself.
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