Image dimensions and file size are different
Why fewer pixels often reduce bytes but never promise one exact file size.
ReadImage sizing explained
Resize without guessing what changed
Understand pixel dimensions, file bytes, ratio rounding and local browser processing.
Aspect ratio and pixel rounding
See why a proportional calculation can differ by one pixel after rounding.
ReadWhat local browser image resizing protects
Understand the no-network boundary and the limits of metadata and colour claims.
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