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    Michelle, 1Rebel UK

    "Really recommend Clean Digital, they've been a fantastic agency to work with and we've always been really impressed with the team and the results they produce."

    Reddit Image Ad specs

    Multiple aspect ratios are accepted depending on placement context.

    Platform
    Reddit
    Media type
    image
    Campaign type
    Promoted Post
    Placement
    Feed
    Build a cross-platform creative brief

    Technical requirements

    Confirm these limits before final export. Where a field is not specified, check the linked platform source before trafficking the asset.

    Specification set 1

    Dimensions
    1080 × 1080 px
    Minimum dimensions
    Not specified
    Aspect ratio
    1:1 (common)
    File types
    JPG, PNG, GIF
    Maximum file size
    3 MB
    Duration
    Not specified

    Supports multiple ratios including 4:5, 4:3, 16:9.

    Creative QA checklist

    1. Validate primary ratio before publish
    2. Use concise headline and CTA copy
    3. Avoid dense text blocks on creative