What image sizes are required for Google Responsive Display Ads?

Responsive Display Ads require at least one Landscape image (1.91:1 ratio, recommended 1200 × 628 px, minimum 600 × 314 px) and one Square image (1:1 ratio, recommended 1200 × 1200 px, minimum 300 × 300 px). Max file size is 5,120 KB (5 MB).

What additional formats are supported in Google Performance Max (PMax)?

In addition to 1.91:1 Landscape and 1:1 Square, Performance Max supports 4:5 Portrait images (recommended 960 × 1200 px, min 480 × 600 px), 4:1 Landscape Logos (1200 × 300 px), and 1:1 Square Logos (1200 × 1200 px).

Are my ad images uploaded to a remote server for checking?

No. All checks are performed 100% locally in your web browser using HTML5 Canvas APIs. Your images, client assets, and confidential campaign drafts never leave your computer.

What file formats does Google Ads support for image creatives?

Google Ads supports standard JPEG and PNG files (static). Animated GIFs are not supported in Responsive Display or Performance Max image asset slots.

Tools/Google Ads Creative Image Checker

GOOGLE ADS CREATIVE PRE-FLIGHTResponsive Display & PMax

Campaign-ready ad creatives, verified against Google specs.

Validate landscape (1.91:1), square (1:1), portrait (4:5), and logo assets against official Google Ads guidelines. Catch aspect ratio mismatches and pixel errors before uploading to Google Ads Manager.

100% In-browser verification (0 uploads)·Google Ads Manager policy compliant·Instant auto-crop suggestions

GOOGLE ADS VALIDATOR READY

Select campaign type & drop your display creatives below

Smart Image Resizer

Responsive display ads adapt to available placements. Check landscape and square images separately.

Drop your ad images here

or on your device

PNG or JPG Up to 5 MB each Checked privately in your browser

TECHNICAL SPECIFICATIONS

Official Google Ads image specifications
for high-converting campaigns.

Responsive Display Ads and Performance Max campaigns automatically scale and combine your uploaded creatives across YouTube, Gmail, Search, and the Google Display Network.

Format / Slot	Aspect Ratio	Recommended Pixels	Minimum Allowed	Max File Size
Landscape Marketing Image	1.91:1	1200 × 628 px	600 × 314 px	5,120 KB (5 MB)
Square Marketing Image	1:1	1200 × 1200 px	300 × 300 px	5,120 KB (5 MB)
Portrait Image (PMax Only)	4:5	960 × 1200 px	480 × 600 px	5,120 KB (5 MB)
Landscape Logo	4:1	1200 × 300 px	512 × 128 px	5,120 KB (5 MB)
Square Logo	1:1	1200 × 1200 px	128 × 128 px	5,120 KB (5 MB)

Select campaign preset

Toggle between Responsive Display (focus on 1.91:1 & 1:1) andPerformance Max (includes 4:5 portrait & logo ratios).

Drop multiple image assets

Calkora immediately reads natural pixel dimensions, calculates exact aspect ratios, and flags whether each file meets Google's minimum threshold.

Fix or batch resize

Send mismatched files directly to the Smart Image Resizer orBulk Asset Checker to automatically letterbox or crop without distortion.

FREQUENTLY ASKED QUESTIONS

Everything you need to know about Google Ads images

Why is aspect ratio precision critical in Google Ads?+

Google Ads enforces a strict 1% aspect ratio tolerance for landscape (1.91:1) and square (1:1) formats. If your image is off by even a few pixels (e.g. 1200 × 640 instead of 1200 × 628), Google Ads Manager will reject the upload.

Can I use PNG images with transparent backgrounds?+

While PNG logos can have transparent backgrounds, marketing images should have solid backgrounds. Transparent marketing images may render unpredictably across dark-themed publishers on the Display Network.

How many creative assets should I upload to Performance Max?+

Google recommends uploading up to 20 images per asset group: at least 3 landscape (1.91:1), 3 square (1:1), and 1 portrait (4:5) to give the machine learning engine enough variety to test and optimize ad combinations.

How can I convert images that have the wrong aspect ratio?+

Click the 'Smart Resizer' shortcut to load your image into Calkora's resizer, select the Google Ads Landscape or Square preset, and choose between 'Fit entire image (Contain)' with padding or 'Fill canvas (Cover)'.