Most guides explain how to make a photo smaller. But some forms set a minimum file size too — and an image that's too small gets rejected just like one that's too big. Here's how to increase a photo's size in KB to meet a minimum.
Why would a form need a minimum size?
A minimum file size is a rough check that your photo has enough detail to be verifiable — a 5 KB image is usually too low-quality to confirm a face. So a form might require, say, "20 KB to 50 KB". If your photo is under 20 KB (common after heavy compression or for a small crop), you need to increase it.
How to increase image size in KB
Open Increase Image Size in KB, set the minimum you need (for example 20 KB), and upload your photo. The tool re-saves it at top quality — enlarging it slightly if necessary — and tops the file up to reach your target, then lets you download it. It runs entirely in your browser.
Does it reduce quality?
No. Increasing the file size doesn't damage the image — the tool keeps your photo at full quality and adds harmless data to reach the size. The picture looks identical; it just weighs more on disk, so it passes the minimum-size check. The result is a standard JPG that uploads anywhere.
When you need both a minimum and a maximum
If a form asks for a range like "20–50 KB", aim for the middle. Start by setting the correct pixel dimensions, then either increase a too-small file or compress a too-large one to land inside the range.