GUIDE · 2026-10-11
How to Combine Image Format, Dimensions and a KB Limit
When an upload form specifies format, width, height and file size, changing one constraint can affect another. The order of operations matters.
Open the toolBrowse exact presets →1. Fix the canvas
Set the final width, height and crop/pad behavior first.
2. Export the requested format
Convert to the required JPEG, PNG or WebP before final size validation.
3. Target the KB ceiling or range
Optimize quality and, when necessary, dimensions only within the allowed rules.
4. Validate the final file
Check dimensions, MIME type and file size on the actual download—not on the original source.
Do it now, not one file at a time.Browse exact presets →