Compress an image to an exact file size
Pick a target size and Image KB Reducer searches for the highest quality that still fits under it — never over, never a guess.
Questions
Will the file ever come out over my target size?
No. The search only ever returns a result at or under your target — that is the one thing this tool guarantees.
Does compressing change the image dimensions?
Only if you allow it. With resizing allowed, Image KB Reducer may shrink dimensions when quality alone can't reach your target; with it off, dimensions are pinned and the tool reports the closest size it could reach instead.