AI Ad Banner Resizer
Easily convert ad creatives and banners to any desired size or aspect ratio using our intelligent AI-based resizing workflow. Designed for performance marketers, designers, and digital advertisers, this tool automates the process of adapting ad images across multiple platforms and formats—without losing visual quality or layout consistency. With just two simple inputs—the original banner image and the target aspect ratio—our workflow generates a high-quality, size-adapted version that’s optimized for your specific needs. Whether you’re resizing square Instagram ads to widescreen YouTube thumbnails, converting vertical stories into horizontal display ads, or generating landscape web banners from portrait creatives, our system intelligently repositions, scales, and preserves key elements in the design. Use any of the following values for aspect ratio - [ "match_input_image", "1:1", "16:9", "9:16", "4:3", "3:4", "3:2", "2:3", "4:5", "5:4", "21:9", "9:21", "2:1", "1:2"].
If you're looking for an API, here is a sample code in NodeJS to help you out.
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const axios = require('axios');
const api_key = "YOUR API KEY";
const url = "https://api.segmind.com/workflows/6863c56b4727e611dfa21ad5-v1";
const data = {
image: "publicly accessible image link",
aspect_ratio: "the user input string"
};
axios.post(url, data, {
headers: {
'x-api-key': api_key,
'Content-Type': 'application/json'
}
}).then((response) => {
console.log(response.data);
});1
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{
"poll_url": "<base_url>/requests/<some_request_id>",
"request_id": "some_request_id",
"status": "QUEUED"
}You can poll the above link to get the status and output of your request.
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{
"output_image": "image in URL Format"
}Attributes
To keep track of your credit usage, you can inspect the response headers of each API call. The x-remaining-credits property will indicate the number of remaining credits in your account. Ensure you monitor this value to avoid any disruptions in your API usage.
Easily convert ad creatives and banners to any desired size or aspect ratio using our intelligent AI-based resizing workflow. Designed for performance marketers, designers, and digital advertisers, this tool automates the process of adapting ad images across multiple platforms and formats—without losing visual quality or layout consistency.
With just two simple inputs—the original banner image and the target aspect ratio—our workflow generates a high-quality, size-adapted version that’s optimized for your specific needs. Whether you’re resizing square Instagram ads to widescreen YouTube thumbnails, converting vertical stories into horizontal display ads, or generating landscape web banners from portrait creatives, our system intelligently repositions, scales, and preserves key elements in the design. Use any of the following values for aspect ratio - [ "match_input_image", "1:1", "16:9", "9:16", "4:3", "3:4", "3:2", "2:3", "4:5", "5:4", "21:9", "9:21", "2:1", "1:2"].
Powered by advanced AI models, the workflow analyzes the visual hierarchy, object placement, and overall composition of the original ad. It then automatically adapts the layout to match the target dimensions, ensuring that your message, branding, and call-to-action remain visually impactful across formats.
This is ideal for advertisers managing multi-channel campaigns, creative studios needing scalable outputs, or automation pipelines where rapid adaptation of ad formats is crucial. No more manual cropping, stretching, or losing context—just fast, accurate, and professional-looking resized creatives, every time.
Compatible with most digital ad formats and customizable via API or integration into existing design systems, this smart banner resizing solution helps boost efficiency, reduce creative turnaround times, and maintain design integrity at scale.
Compatible with most digital ad formats and customizable via API or integration into existing design systems, this smart banner resizing solution helps boost efficiency, reduce creative turnaround times, and maintain design integrity at scale.
Whether for social media, programmatic display, or mobile-first campaigns, streamline your creative production with our AI ad resizing workflow today.
Useful for creating powerful workflows in ad banner resizing, AI image resizer, creative aspect ratio converter, smart ad resizing, automated banner conversion, AI design workflow, multi-format ad generation, responsive ad creatives
Models Used in the Pixelflow
flux-kontext-max
FLUX.1 Kontext [max] transforms textual descriptions into stunning, high-fidelity images with seamless typography integration.
gpt-4o
GPT-4o (“o” for “omni”) is our most advanced model. It is multimodal (accepting text or image inputs and outputting text), and it has the same high intelligence as GPT-4 Turbo but is much more efficient—it generates text 2x faster and is 50% cheaper. Additionally, GPT-4o has the best vision and performance across non-English languages of any of our models. GPT-4o is available in the OpenAI API to paying customers.
