Increase Image Size (KB)
Some upload forms reject files that are too small — bring your photo up to the minimum without changing how it looks.
- Files never leave your device
- 100% free
- No sign-up
- No watermark
- Works offline after first load
or drag & drop your photo or signature — or paste with Ctrl+V
How to increase the size of an image in KB
- Select or drop your photo, signature or scan.
- Enter the size the form asks for — at least, and optionally at most (for example 20–50 KB) — and choose how: higher quality, hidden padding, or more pixels.
- Click Increase size and download the file, now within the range.
About Increase Image Size (KB)
Online forms sometimes reject a photo or signature for being too small — “minimum 20 KB” or “between 50 and 100 KB”. Add the picture, type the range and get a file that fits, without guessing.
Raise the quality first and only add pixels when needed, enlarge the picture, or use hidden padding: the picture stays pixel-for-pixel the same and invisible bytes make the file exactly the size you need. JPG or PNG, several files at once, all in your browser.
Good for
- Meeting minimum file sizes on exam and job application forms
- Bringing scanned signatures and thumb impressions into a KB range
- Re-saving low-quality photos at a higher quality
Tip: Choose hidden padding when the form only checks the file size — the picture won’t change at all.
Frequently asked questions
Why would I make an image bigger?
Some application forms — exams, bank and government portals — reject photos and signatures that are too small, for example “between 20 KB and 50 KB”. This tool brings a small file up to the required size.
Which method should I choose?
“Raise the quality” re-saves the picture at a higher quality and only adds pixels if needed. “Hidden padding” keeps the picture exactly as it is and adds invisible bytes, so the file is precisely the size you want. “More pixels” enlarges the picture itself.
Is hidden padding safe to upload?
Yes. The padding is stored in a JPEG comment or a private PNG section that every program ignores — the picture opens and looks exactly the same.
Can I set a range like 20–50 KB?
Yes. Enter both numbers; the result is kept inside the range.
Does the picture look better afterwards?
No — making the file bigger can’t add detail. It only meets the form’s minimum size.
Does my photo leave my device?
No. Everything happens in your browser, so your photos are never uploaded.