A "10 KB to 20 KB" rule is one of the most common requirements on Indian exam and job portals — the SSC CGL 2025 notice, for example, asks for the signature in JPG between 10 and 20 KB. The tricky part is that a scanned signature is often smaller than 10 KB, and portals reject it. This page handles both directions: large files are compressed, and small ones are raised to at least 10 KB without changing how they look.
Tips for the best result
- For signatures, tick Clean signature background so the paper turns pure white and the ink is crisp.
- If the form also gives a size in cm (like 6 × 2 cm), choose cm and type it.
How to resize image to 10–20 KB
- Click Select images and choose your photo (or several).
- Type the minimum and maximum size in KB from your form.
- Optionally set the width and height in pixels or cm.
- Click Compress image and download the JPG.
Why use PDFNest to resize image to 10–20 KB
- Exact KB limitsSet a maximum, a minimum, or both — the result always lands inside the range.
- Best quality that fitsWe search for the highest JPEG quality under your limit instead of crushing the photo.
- Pixels or centimetresResize to exact dimensions too, with the DPI saved in the file.
- Private by designYour photo is processed on your device and never uploaded.
Frequently asked questions
My signature is only 4 KB but the form needs 10–20 KB. What do I do?
Add it here — the 10–20 KB range is pre-set. We enlarge the image or raise the file size so it reaches at least 10 KB, without changing how the signature looks.
How do I get an image between 10 KB and 20 KB?
Add the image and click Compress image. The download is always between 10 and 20 KB, and the exact size is shown.
Does it work for photos too?
Yes, any image. For face photos, check whether your form allows a bigger size, since 20 KB limits detail.
How do I reduce an image size to a specific KB?
Add your photo, type the maximum size in KB (for example 50), click Compress image and download. The result shows its exact size so you can check it before uploading.
My form needs the photo between 20 KB and 50 KB. Can I do that?
Yes. Type 20 in Minimum and 50 in Maximum. If your photo is very small, we enlarge it or raise the file size so it reaches the minimum without changing how it looks.
Can I compress a photo on my phone?
Yes. It works in Chrome, Safari and other browsers on Android and iPhone. The compressed photo is saved to your Downloads or Files app.