Integrate Advertising supports HTML5 creatives, such as ad tags from Google Web Designer and Sizmek, or zips files.
Ad specs are HTML5 creatives in the following sizes:
Wide Skyscraper: 300×600
Medium Rectangle: 300×250
Mobile Interstitial: 320×480
Large Mobile Banner: 320×100
Mobile Leaderboard: 320×50
Overall payload should be less than 200KB
Please let us know if you have any questions, if you are looking for details about image ads, you can check here for more details.