Midjourney Output Specifications and Ratios

Specify where the image will be used before generation. Wrong ratios can cut off subjects, remove title space and make platform adaptation difficult.

#Decide in order

Choose the cover/poster/social/landscape use case, then the ratio, then composition and whitespace. --ar 16:9 alone does not explain why landscape is useful.

The source describes a square default and the --ar / --aspect controls. Confirm behavior in the selected version.

#Ratio changes the composition

Landscape needs left/right information flow; portrait needs vertical structure and top/bottom crop safety; 4:5 balances density and subject clarity; squares often favor a central focal point.

Reserve title space explicitly, check thumbnails, choose a primary platform and keep important elements inside the safe area.

textCopy
Use case: course hero
Ratio: 16:9
Need: clear focal point, safe crop area, negative space for headline

#Reuse across platforms

Optimize for the primary destination and create a small number of derived versions. One image should not be assumed to crop perfectly everywhere.

#Large or print output

The source records an upscaled V7 square example of 2048 x 2048 px. Treat that as version-specific. Check the actual exported dimensions against the final print size, any enlargement requirement and later Photoshop work.

Before every brief, record the destination, target ratio and required title/action space.