Aspect Ratio Explained for Image Resizing
Learn what aspect ratio means and how it prevents stretched or distorted images.
The short answer
Aspect ratio is the relationship between image width and height. A square image has a 1:1 ratio, while 1920×1080 uses a 16:9 ratio. Keeping aspect ratio locked prevents the image from being stretched.
A quality-first workflow
If the required frame has a different aspect ratio than the original, use fit to show the entire image or fill to crop into the exact frame.
Why this matters
Image dimensions, file size, format, and compression settings all affect upload success, page speed, and visible quality. The right workflow starts with the actual requirement, then changes only what is needed.
About the author
PixelPerfect publishes browser-based image optimization tools and practical guides about image compression, image resizing, JPG, PNG, WebP, dimensions, and file-size limits.
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