TL;DR: The best way to add text to a Google ad image is through headline and description fields, not image overlays. If you must embed text in an image, keep it under 20% of the image area. Use Coinis Revise to update image text fast, then export to your Google campaign.
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Why Text Placement Matters in Google Ads
Get text placement wrong and your ad gets disapproved before anyone sees it.
Google's policy on text overlays vs. text fields
Per Google's Ads Help Center, Google discourages overlaying text directly on ad images. The platform uses headline and description fields to place text dynamically across placements. Text baked into an image file limits what Google's system can do with it.
Two types of "text" exist in Google Ads. Text fields are the headline and description inputs you fill in during campaign setup. Overlaid text is text added on top of an image before upload. Google strongly prefers text fields.
How text affects ad performance and user experience
Responsive display ads combine your uploaded assets automatically. Google's AI picks the best combination for each placement and screen size. When text is locked into an image, that flexibility disappears. Embedded text also becomes unreadable on smaller placements, which hurts reach and engagement.
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Best Way to Add Text: Use Text Fields, Not Overlays
Type your message into the fields Google provides. It is faster, cleaner, and fully Google-approved.
Headline and description fields (the primary method)
Google Ads gives you up to three headline fields and up to two description fields for responsive display ads. Per Google Ads documentation on managing responsive display ads, these assets combine dynamically with your images. Google places your copy where it performs best across hundreds of placements.
This is the recommended method. It keeps your images clean and free of hard-coded text. It gives Google's optimization system room to work. Your copy stays editable at any time without touching the image file.
Account eligibility and requirements
Image assets come with an eligibility requirement. Per Google's image asset format requirements, your account must be open for at least 60 days. You also need active campaigns and some spend history. Brand-new accounts will not have image asset access right away.
Legally required text, such as disclaimers, must be pinned to specific headline or description positions. Do not embed it in the image.
How text fields appear in different ad formats
Responsive display ads adapt to hundreds of placements automatically. Headlines and descriptions flow into each format without any action on your part. Text stays readable. It does not get cut off. It never violates the image coverage threshold on any screen size.
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When You Must Overlay Text on Images
Sometimes text needs to be part of the image itself. A sale price locked to a product shot. A tagline tied to a visual. Here is what Google allows.
The 20% text rule explained
Per Google's best practices guide for responsive display ads, text overlays must cover no more than 20% of the image. Google reviews image assets against this threshold. Stay well below it. Let your headline fields carry the heavier messaging load.
When naturally embedded text is acceptable
Google's image quality requirements draw a clear line. Text that is naturally embedded in a photograph, such as a brand name on product packaging or signage visible in a real scene, is acceptable. It does not count as an overlay. The restriction targets text you add after the fact, not text that was already part of the original photo.
Tools and best practices for text overlays
When you do add text to an image, keep it minimal. Use large, high-contrast fonts. Place text away from edges and corners. Avoid stacking multiple text elements. Confirm you are under the 20% coverage limit before uploading.
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How to Add and Edit Text in Google Ads
The steps depend on whether you are editing text fields or image files.
Adding text via Google Ads interface or Editor
Open your campaign in Google Ads and go to the responsive display ad editor. Add or update headlines and descriptions directly in the provided fields. Google Ads Editor, the free desktop app, offers bulk editing options for larger campaign sets. Both approaches keep text in the right place.
Editing image text efficiently
If your image has text baked in and you need to change it, you have to edit the source file. That means reopening the original design, making the update, and re-exporting. Most advertisers find this slow and disruptive, especially mid-campaign.
Quick design adjustments with AI tools
If you built your image using the Coinis Image Ads workflow, you can open it directly in Coinis Revise. The Edit text on image feature lets you update any text element without touching the original file. Change the copy, adjust placement, and export in minutes.
Coinis publishes directly to Meta today. For Google Ads, you download the final image and upload it to your Google campaign. But cutting the creative work down to minutes is worth it on any channel.
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Common Mistakes to Avoid
Small errors here lead to disapprovals and wasted budget.
Overlaying logos and text simultaneously
Per Google's best practices guide, overlaying a logo on top of an image is already discouraged. Adding text on top of that makes it worse. In some ad layouts, Google renders your logo separately. A duplicate logo in the image looks repetitive and reduces visual clarity.
Exceeding the 20% text limit
Text coverage above 20% will trigger a policy flag. Review your image before uploading. If the message is important enough to run large, put it in a headline field instead of the image.
Using text overlays on small ad sizes
Text that looks readable at full size becomes impossible to read at 300x250 or smaller. Per Google Ads guidance, overlaid text is a leading reason ads underperform across placements. Critical messages belong in text fields, not baked into images.
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Frequently Asked Questions
Can I add text directly on top of a Google ad image?
You can, but Google discourages it. The preferred method is to add text through headline and description fields in your campaign setup. If you do overlay text on an image, it must cover no more than 20% of the image area or your ad may be disapproved.
What is the 20% text rule in Google Ads?
Per Google's best practices guide for responsive display ads, any text overlaid on an image must cover no more than 20% of the image. Google reviews image assets against this limit. Exceeding it can lead to ad disapproval.
Does text naturally embedded in a photo count as a text overlay?
No. Per Google's image quality requirements, text that is naturally part of the original photograph, such as a product name on packaging or signage in a real scene, is acceptable and does not count as an overlay. The restriction applies only to text added on top of an image.
How do I edit text on an existing Google ad image?
You need to edit the source file in a design tool, then re-export and re-upload. If you created the image using the Coinis Image Ads workflow, you can open it in Coinis Revise and use Edit text on image to update the text fast. Download the updated image and upload it to Google Ads.