- Responsive display ads auto-resize your uploaded assets across the Display Network using Google's machine learning.
- Upload at least one landscape (1.91:1) and one square (1:1) image to maximize serving eligibility.
- Dynamic image assets pull images directly from your landing page — no manual uploads after setup.
- Dynamic image assets need account opt-in, 60+ days account age, and aren't available in all verticals.
- Coinis Smart Resize converts any ad creative to any platform's dimensions in one click.
Google Ads serves ads across millions of websites, apps, and Gmail placements. Each placement needs a different size. Auto-resizing cuts that work from hours to minutes.
Why Auto-Resizing Matters for Google Ads
Google Ads placements vary by device and format
The Display Network is vast. A banner that fits a desktop leaderboard breaks on a mobile interstitial. Google Ads needs assets in multiple shapes and sizes to serve everywhere your audience is.
Manual resizing creates bottlenecks
Creating a new file for every size takes time. Designers make mistakes under pressure. Campaigns go live with stretched or cropped creatives, and that hurts performance before you even check your first report.
Automatic resizing saves time and improves coverage
Google's machine learning handles the heavy lifting. You upload a handful of quality assets. Google builds and tests combinations across placements automatically. More coverage with less effort.
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Option 1: Responsive Display Ads (Google's Native Solution)
What responsive display ads are and how they work
Responsive display ads (RDAs) are Google's default ad type for the Display Network. Per Google's Ads Help Center, they automatically adjust their size, appearance, and format to fit any available ad space. Google's machine learning tests combinations of your assets and continuously optimizes for performance.
How to set up responsive display ads
Go to your Display campaign in Google Ads. Click New Ad and select Responsive display ad. Upload your images, headlines, descriptions, and a logo. Set your final URL. Google takes over from there.
Asset requirements and best practices
Per Google's documentation, upload images in JPG or PNG format. The maximum file size is 5 MB. For best results, upload four or more unique images. Include at least one landscape image at a 1.91:1 ratio (minimum 600 x 314 px) and at least one square image at a 1:1 ratio (minimum 300 x 300 px). Adding a vertical 9:16 image is optional but expands your serving eligibility further.
Short headlines perform better than long ones. Keep descriptions specific to the offer. A strong logo matters more than most advertisers expect.
Limitations of responsive display ads
Responsive display ads trade creative control for convenience. You provide the raw materials. Google decides how to assemble them. If every pixel of your brand presentation matters, you will hit the limits of this approach quickly. You cannot preview every possible combination before it serves.
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Option 2: Dynamic Image Assets (ML-Powered Auto-Resize)
How dynamic image assets work
Dynamic image assets use machine learning to pull relevant images directly from your landing page. Google extracts, curates, and resizes them for different ad formats and placements. Once the feature is on, there are no manual uploads required.
Per Google's documentation, the system selects images most relevant to the query and puts them through quality checks before serving.
How to enable dynamic image assets
Open your account Settings in Google Ads. Find the Dynamic Assets section. Toggle on Dynamic image assets. Google begins crawling your eligible landing pages and building assets automatically from that point forward.
Image format combinations that serve automatically
Google serves dynamic image assets in several combinations depending on available placement: a single image, three square images side-by-side, five square images side-by-side, or landscape and square pairings. The format that serves depends on the ad slot available.
Eligibility requirements and policy considerations
Per Google's Ads Help Center, dynamic image assets are an account-level opt-in feature. Your account must be in good policy standing and open for at least 60 days. The feature is not available for sensitive verticals including gambling and sexual content. All images go through a manual review process before serving. You also confirm that you hold the rights to any images Google might extract from your pages.
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When to Use Each Approach
Responsive display ads: broad reach, controlled assets
Use RDAs when you have a small, polished creative library and want control over which images represent your brand. Upload once and let Google optimize. Good for awareness and retargeting campaigns across the full Display Network.
Dynamic image assets: ecommerce and high-traffic pages
Use dynamic image assets when your landing pages already have strong product photography. Google does the asset work for you. This approach scales well for catalog-heavy advertisers who update inventory frequently.
Combining both for maximum performance
Use both together when scale matters. Responsive display ads give you curated baseline coverage. Dynamic image assets expand your pool with landing page content. Together they reach more placements with more variety, giving Google's machine learning more to work with.
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Streamline Resizing Across All Channels with Coinis
Why resize once and repurpose everywhere
An ad you build for Google also needs to run on Meta. Sometimes TikTok. Each platform requires different dimensions. Rebuilding from scratch for every channel wastes hours every campaign cycle.
How Coinis Smart Resize accelerates the workflow
Coinis Revise includes Smart Resize. Upload any ad creative. Select your target dimensions. Coinis resizes it instantly using cutting-edge AI models. No manual cropping. No distorted text. The result is a clean, platform-ready asset.
Coinis publishes directly to Facebook and Instagram today. TikTok and Google direct publishing are on the roadmap. In the meantime, Smart Resize gives you the correctly sized file to upload wherever you run ads. One source creative. Every format covered.
Managing creative libraries for cross-platform campaigns
Every resized asset lives in your Creative Library inside Coinis. Organize by campaign, platform, or format. Pull the right file when you need it. No hunting through desktop folders or Slack threads.
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Or skip the steps.
Coinis Revise edits any ad image with AI. Move text. Change text. Swap colors. Erase objects. Translate to any language. One click each.
No design skills. No Photoshop. One click.
15 AI tokens a month. No credit card.
Frequently Asked Questions
What image sizes do I need for responsive display ads on Google?
Per Google's documentation, upload at least one landscape image at 1.91:1 (minimum 600 x 314 px) and one square image at 1:1 (minimum 300 x 300 px). You can also add a vertical 9:16 image as an optional asset. All images must be JPG or PNG, with a maximum file size of 5 MB.
Can Google automatically resize my existing ad images?
Yes, in two ways. Responsive display ads let you upload images and Google resizes them across placements automatically. Dynamic image assets go further: Google extracts images directly from your landing page without any uploads. Both use machine learning to match the right size to each ad placement.
What are dynamic image assets and how do I turn them on?
Dynamic image assets are a Google Ads account-level feature that uses machine learning to pull images from your landing page and resize them for different placements. To enable, go to your account Settings, find the Dynamic Assets section, and toggle on Dynamic image assets. Your account must be at least 60 days old and in good policy standing.
Can Coinis resize my ads for Google Ads placements?
Yes. Coinis Revise includes Smart Resize, which resizes any ad creative to any set of dimensions in one click using AI. Coinis publishes directly to Meta today. For Google Ads, Smart Resize gives you the correctly sized files to upload yourself. Direct Google Ads publishing is on the Coinis roadmap.