Ad specs / LinkedIn
LinkedIn single image ad size
A LinkedIn single image ad is 1.91:1 at 1200 × 628 pixels, a JPG, PNG or GIF up to 5 MB. LinkedIn marks vertical 4:5 at 720 × 900 as a recommended ratio too, served on mobile only, and takes square 1:1 at 1200 × 1200. It advises up to 150 characters of introductory text and 70 of headline to avoid truncation.
| Format | Sponsored Content with one image, in the feed of the ad set's target audience |
|---|---|
| File type | JPG, PNG or GIF; an animated GIF must be 250 frames or shorter |
| Maximum file size | 5 MB |
| Horizontal | 1.91:1 (recommended ratio) at 1200 × 628 pixels; minimum 640 × 360, maximum 7680 × 4320 |
| Square | 1:1 at 1200 × 1200 pixels; minimum 360 × 360, maximum 4320 × 4320 |
| Vertical | 4:5 (recommended ratio) at 720 × 900 pixels; minimum 360 × 640, maximum 2430 × 4320. Both bounds are 9:16 sizes, LinkedIn's figures, shown here as written |
| Vertical delivery | LinkedIn recommends vertical images, which serve on mobile devices only; a 1:1.91 vertical image is still supported but gets borders on either side, which 4:5 avoids |
| Image size | Up to 7680 × 4320 pixels, scaled down automatically; an image under 401 pixels wide displays as a thumbnail |
| Introductory text | Up to 150 characters to avoid truncation, 3,000 at most, with up to 10 emojis |
| Headline | Up to 70 characters to avoid truncation, 200 at most |
| Description | 100 characters to avoid truncation, 300 at most; shown when the image is under 200 pixels wide or the ad runs on the LinkedIn Audience Network |
| Ad name and URL | Ad name up to 255 characters; destination URL up to 2,000, with the http or https prefix |
| Cropping | Square and vertical images might be cropped when the ad is shared organically; for thumbnails LinkedIn recommends ratios between 3:2 and 16:9 |
What the other guides get wrong
One guide recommends 628 × 1200 for a vertical LinkedIn image. LinkedIn recommends 4:5 at 720 × 900, and says a 1:1.91 vertical image is still supported but gets borders added to either side.
Source: LinkedIn Marketing Solutions Help — Single image ads advertising specifications. Every figure on this page is from there, as of . Platforms revise specs without notice; check the source before you build a template on it.
Related reading
Adapt in Terrads makes a 1200 × 628 version of an ad you already have, extending the picture with AI where a crop would lose too much of it.