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: ≤ 100 characters Safer limit: ≤ 80 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

Things to know

• Combine feed and conversation to show ads across all placements and maximize performance.
• Use the highest resolution that meets the ratio requirements for best quality.
• In most cases, any aspect ratio can be used but may cause formatting issues, like black bars appearing. Follow our recommendations to limit issues.
• Text may be truncated due to factors like browser, device, and font display size. We recommend limiting headlines to 100 characters, or 80 characters if truncation is a concern.
• Use Crop image in ad setup to streamline changing the aspect ratio and cropping of images in your ad.
• We recommend experimenting with different ad types to see what resonates most with your audience. Learn more about our creative best practices.
• A thumbnail will be automatically generated based on the media in your ad for all types except for freeform. You can choose to replace this by uploading a different image.