Crop BMP Images to 3:4 (Portrait)
The 3:4 Portrait ratio is used for: book covers, posters, product standing shots, portrait photography, menus. Standard portrait orientation used for book covers, posters, and standing product photography. The most natural ratio for upright subjects. When preparing BMP images in 3:4 format, optimize file size alongside the crop — ImageSmith compresses your BMP to the perfect size for any platform. Common 3:4 dimensions: 900×1200, 750×1000, 1200×1600.
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Aspect Ratio
3:4
Name
Portrait
Format
BMP
Example size
900×1200, 750×1000, 1200×1600
▸book covers
▸posters
▸product standing shots
▸portrait photography
▸menus
Reduce file size too?
Compress your BMP — instant, browser-based, free.
Other BMP Aspect Ratios
Crop BMP to 3:4 — FAQ
Standard portrait orientation used for book covers, posters, and standing product photography. The most natural ratio for upright subjects. Common use cases include: book covers, posters, product standing shots, portrait photography, menus.
Common 3:4 dimensions include: 900×1200, 750×1000, 1200×1600. Choose the size that matches your target platform's requirements.
Upload your BMP image to ImageSmith and set a target file size. The tool compresses to any size while maximizing quality — browser-only, no uploads.
BMP is lossless and great for graphics. WebP is often 25–35% smaller for the same 3:4 image content.