All 12 Microsoft Ads ad formats (10 image, 2 video), grouped by placement category — the same specs the resizer exports.
Safe-zone values are pixels (top / bottom / left / right) at the format's native recommended resolution — keep text, logos, and CTAs out of those margins so platform UI doesn't cover them. Formats without a value have no platform-documented safe zone.
Audience Network
Format
Type
Aspect ratio
Recommended size
Minimum size
Max file size
Duration
Codec
Safe zone
Audience Landscape
Image
1.91:1
1200 × 628 px
703 × 368 px
30MB
—
—
—
Audience Square
Image
1:1
1200 × 1200 px
200 × 200 px
30MB
—
—
—
Display Banners
Format
Type
Aspect ratio
Recommended size
Minimum size
Max file size
Duration
Codec
Safe zone
Medium Rectangle
Image
6:5
300 × 250 px
—
150KB
—
—
—
Large Rectangle
Image
1.2:1
336 × 280 px
—
150KB
—
—
—
Leaderboard
Image
8:1
728 × 90 px
—
150KB
—
—
—
Mobile Banner
Image
6.4:1
320 × 50 px
—
150KB
—
—
—
Large Mobile Banner
Image
3.2:1
320 × 100 px
—
150KB
—
—
—
Half Page
Image
1:2
300 × 600 px
—
150KB
—
—
—
Skyscraper
Image
4:15
160 × 600 px
—
150KB
—
—
—
Billboard
Image
3.88:1
970 × 250 px
—
150KB
—
—
—
Video Ads
Format
Type
Aspect ratio
Recommended size
Minimum size
Max file size
Duration
Codec
Safe zone
Video Ad Landscape
Video
16:9
1920 × 1080 px
640 × 360 px
1GB
up to 90 s
H.264
—
Online Video Vertical
Video
9:16
1080 × 1920 px
720 × 1280 px
1GB
6–90 s
H.264
—
Retired formats
Microsoft Ads no longer accepts these placements. They stay listed here for reference but are no longer offered in the resizer.
Format
Type
Aspect ratio
Recommended size
Minimum size
Max file size
Duration
Codec
Safe zone
Video Ad SquareRetired 2026-08-12 — 1080×1080 (1:1) is not in Microsoft Advertising’s officially supported video resolutions or aspect ratios at any quality tier; use 16:9 landscape or 9:16 vertical instead.