Image Ad Specifications
An image ad contains a headline, image, and destination URL. When someone taps or clicks your image, they’re taken to your landing page.
You can choose to enable comments for this ad type.
Text
| Headline | 300 characters Recommended: ≤ 150 characters | ✓ |
|---|---|---|
| Destination URL | 268 characters | ✓ |
| Display URL | 100 characters This must match your destination URL’s domain (e.g., reddit.com) | |
| Call to action | Choose from options |
Image
In most cases, any aspect ratio can be used, but it may cause formatting issues, like black bars appearing. Follow our recommendations to limit issues.
| File type | JPG, PNG, or GIF |
|---|---|
| Maximum file size | 3 MB |
Cross-device
For best results, use a single image for multiple devices, placements, and view modes. Alternatively, you can change the thumbnail to set a different image for conversation placement and compact view. All ratios are accepted, but we recommend using the following:
| Ratio | Resolution | |
|---|---|---|
 | Landscape 4:3 | 1440 x 1080 px |
Mobile
| Ratio | Resolution | |
|---|---|---|
 | Square 1:1 | 1080 x 1080 px |
 | Portrait 4:5 | 1080 x 1350 px |
| Landscape 4:3 | 1440 x 1080 px |
 | Landscape 16:9 | 1920 x 1080 px |
Desktop
| Ratio | Resolution | |
|---|---|---|
| Landscape 4:3 | 1440 x 1080 px |
| Landscape 16:9 | 1920 x 1080 px |
Thumbnail
This image is only shown in conversation placement and compact view. The image is automatically generated based on the main image for the ad but can be changed with an uploaded file. The uploaded image can be cropped to adjust the size.
| File type | JPG, PNG, or GIF (will be converted to a still image) |
|---|---|
| Maximum file size | 500 KB |
Recommended resolutions
| Ratio | Resolution | |
|---|---|---|
| Landscape 4:3 | 400 x 300 px |
Acceptable suggestions
Using a thumbnail with these or other ratios may cause formatting issues.
| Ratio | Resolution | |
| Square 1:1 | 300 x 300 px |
| Landscape 16:9 | 400 x 225 px |
