ImageScaleToMaxDimension - ComfyUI Built-in Node Documentation

Complete documentation for the ImageScaleToMaxDimension node in ComfyUI. Learn its inputs, outputs, parameters and usage.

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The ImageScaleToMaxDimension node resizes images to fit within a specified maximum dimension while maintaining the original aspect ratio. It calculates whether the image is portrait or landscape oriented, then scales the larger dimension to match the target size while proportionally adjusting the smaller dimension. The node supports multiple upscaling methods for different quality and performance requirements.

Inputs

Parameter	Data Type	Required	Range	Description
image	IMAGE	Yes	-	The input image to be scaled
upscale_method	STRING	Yes	”area" "lanczos" "bilinear" "nearest-exact" "bicubic”	The interpolation method used for scaling the image
largest_size	INT	Yes	0 to 16384	The maximum dimension for the scaled image (default: 512)

Outputs

Output Name	Data Type	Description
image	IMAGE	The scaled image with the largest dimension matching the specified size