Forms that specify "20–50 KB" reject files under 20 KB just as firmly as files over 50 — and almost every compressor can only shrink. ExactKB grows your file into the window using legitimate JPEG metadata, so the result opens everywhere and passes portal validation.
Set the minimum and maximum from your form, drop the image, and download a file that lands inside the window.
How it works
- Check the target. This page is preset for the spec above — adjust any number to match your exact form.
- Drop your photo. ExactKB finds the best quality and dimensions that land inside the size window — including padding files up when a form has a minimum size.
- Download. The file fits the requirement on the first try.
FAQ
Is padding a file safe/legit?
Yes — ExactKB adds standard JPEG comment metadata, which every image viewer and upload validator treats as a normal part of the file. The picture itself is unchanged.
Why would a form have a minimum size at all?
Portals use minimums as a crude quality check — very small files are assumed to be unreadable scans.
Is my photo uploaded to a server?
No. ExactKB runs entirely in your browser. Your file never leaves your device — this page even works offline.