When resizing large images using the imageEditor Resize tool, the width and height being reported in the UI is cropped at 3 characters. So when a large image (eg. 1280x1024) is being resized, the user can get confused.
To repeat this, just visit the online demo: https://demos.telerik.com/aspnet-ajax/imageeditor/examples/resize/defaultcs.aspx
and choose 1280x1024 in the Preset Size drop-down. You'll see that the width and height being reported is '128' and '102' respectively (the ending zeros in both numbers are not visible to the user).