Compress BMP Images for Google Ads
Google Display Ads require images in multiple specific sizes. Properly optimized ad images load faster across the Google Display Network and maintain quality at all display sizes. Uncompressed Windows bitmap format with very large file sizes. Not suitable for web use without compression. Use ImageSmith to compress your BMP images to the ideal file size for Google Ads — target under 150KB for optimal performance. Processing is fully browser-based — no server uploads, no privacy risk.
Recommended format
JPEG
Max file size
150KB
Dimensions
1200×628 (landscape), 1200×1200 (square), 300×250 (rectangle)
✓Responsive Display Ads accept up to 15 images in various sizes
✓Landscape: 1200×628 minimum, Square: 1200×1200 minimum
✓Logo images must be square with 1:1 ratio at 128×128 minimum
✓Keep ad images under 150KB for fastest Google Display Network delivery