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Microsoft Advertising — Multimedia Ad - Wide banner image (4:1)

Display banner · Display · Verified 2026-06

Live preview

1200×300
shown at 38%

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On a web page

Full specification

Size (px)
Ratio4:1
Max weight5 MB
FormatsJPEG, PNG

Notes & best practice

Optional wide crop for Multimedia ads (SubType ImageMedia4x1).

Recommended size is 1200x300.

Minimum size is 608x152.

Auto-generated from supplied images if not provided.

Official doc All Microsoft Advertising sizes Compare “Display banner” across platforms

Frequently asked questions

What size is the Microsoft Advertising Multimedia Ad - Wide banner image (4:1)?
The Microsoft Advertising Multimedia Ad - Wide banner image (4:1) is 1200×300 px, aspect ratio 4:1.
What is the aspect ratio of the Microsoft Advertising Multimedia Ad - Wide banner image (4:1)?
4:1. At the recommended resolution that is 1200×300 px.
What is the maximum file size for the Microsoft Advertising Multimedia Ad - Wide banner image (4:1)?
Up to 5 MB, in JPEG, PNG.
What file formats does Microsoft Advertising accept for the Multimedia Ad - Wide banner image (4:1)?
JPEG, PNG.
Why does Microsoft Advertising crop my Multimedia Ad - Wide banner image (4:1)?
Microsoft Advertising shows Multimedia Ad - Wide banner image (4:1) at 4:1. Upload exactly 1200×300 px and keep key content in the safe area so nothing gets cut off.
Is 1200×300 still correct for the Microsoft Advertising Multimedia Ad - Wide banner image (4:1) in 2026?
Yes. Last verified 2026-06 against the official Microsoft Advertising documentation.

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