Updated 30 October 2026
Quick answer on resize image to 15kb: Add your photo to the tool below and download the JPG: it will be under 15 KB, typically 340–600 pixels wide for a photo at 68–73% quality. A 15 KB target sits safely inside the most common signature range (10–20 KB for SSC and IBPS) and under the 20 KB limit for the photo on the online PAN form.
Fifteen kilobytes is a popular choice because it is safe: it is above the 10 KB minimum many forms set for signatures and below the 20 KB maximum, so it passes both. The tool does the work on your own device, so your photo or signature is never uploaded to a server.
Your photos never leave this device. Close the page and they are gone.
How to Resize an Image to 15KB in 4 Steps
- Choose your photo in the tool above (or several at once). iPhone HEIC photos and PNG screenshots are fine; the result is always a real JPG.
- Check the limit: the tool is set to 15 KB. If the form also gives a minimum, such as “between 10 KB and 20 KB”, type it in the second box so the file is not too small either.
- Set the dimensions only if the form gives them. Leave “Keep shape” selected otherwise: the tool shrinks the photo just enough to stay sharp. For a signature, tick “Black and white” too.
- Download the JPG (or all of them as a .zip) and upload it. The result line shows the exact KB, the size in pixels and the JPEG quality it used.
Where You Need a Photo Under 15 KB
These are common places where a file of about 15 KB is the safe answer. Aim for the middle of a range rather than the edge: it leaves room if the portal measures KB differently.
| Where | File | Limit |
|---|---|---|
| SSC (CGL, CHSL, MTS, GD) | Signature | 10–20 KB |
| IBPS, SBI, RRB, LIC | Signature, 140 × 60 px | 10–20 KB |
| Protean (NSDL) online PAN application | Photograph, 200 dpi | Up to 20 KB |
| NTA (NEET, JEE Main, CUET) | Signature | 4–30 KB |
Limits change between years and forms, so check the instructions on the upload page itself and type its exact numbers into the tool.
What a 15 KB Photo Looks Like: Our Test
We ran the tool above on two files: a 6-megapixel camera photo full of fine detail (2,725 × 2,225 pixels, 810 KB), which is hard to compress, and a smoother 12-megapixel test image with sensor grain, like a typical phone shot of a person against a wall (4,032 × 3,024 pixels, 3.1 MB). With “Keep shape” selected, it shrank each one only as far as it had to, so the JPEG quality stayed at 60% or more:
| File | Result | Size in pixels | JPEG quality |
|---|---|---|---|
| 6 MP detailed camera photo (810 KB) | 14.4 KB | 339 × 276 | 73% |
| 12 MP smoother image (3.1 MB) | 14.6 KB | 604 × 453 | 68% |
A 15 KB photo is therefore about 339 × 276 pixels from a camera and 604 × 453 from the smoother 12 MP image: enough for a clear head-and-shoulders photo on any online form.
Photo or Signature at 15 KB With Exact Pixels
Many bank and exam forms give exact pixels as well as KB. For an IBPS signature (140 × 60 pixels, 10–20 KB), choose “Set width and height in pixels”, type 140 and 60, set the minimum to 10 and the maximum to 20. At only 8,400 pixels, a clean signature is usually smaller than 10 KB even at the highest quality, so the tool adds an invisible blank block inside the file to reach 10 KB. In our test it produced a 10.1 KB file at 140 × 60 pixels and 95% quality, which the portal accepts.
How the Tool Picks the Size
A JPEG's file size depends on two things: how many pixels it has and how strongly it is compressed (the “quality” setting). Most compressors only lower the quality, which is why their 20 KB results look blocky. This tool searches for the highest quality that fits and, if that would fall below about 60%, makes the photo slightly smaller in pixels instead, because a smaller sharp photo looks far better on a form than a large blurry one. It also writes the resolution (dpi) into the file, which some government portals check, and counts 1 KB as 1,000 bytes so the file passes whichever way the portal measures.
Frequently Asked Questions: Resize Image to 15KB
How do I make a photo 15 KB?
Choose the photo in the tool above, keep the limit at 15 KB and download. If the form also fixes the pixels, select “Set width and height in pixels” and enter them first.
What is the size of a 15 KB photo in pixels?
There is no fixed answer, because detail compresses differently, but at good quality it is roughly 340 × 280 pixels for a camera photo and up to 600 × 450 for a simpler image.
Is 15 KB good for a signature?
Yes. It is in the middle of the common 10–20 KB signature range, so it passes forms that measure KB either as 1,000 or 1,024 bytes.
How do I resize a photo to between 10 and 20 KB?
Set the maximum to 20 and the minimum to 10 in the tool. It aims as close to 20 KB as it can for sharpness and pads the file if the picture is too simple to reach 10 KB.
Does resizing to 15 KB reduce the quality?
Some, unavoidably, but the tool keeps JPEG quality at 60% or higher by reducing the pixel size a little instead, which looks much better than a heavily compressed full-size photo.
Sources
- Staff Selection Commission: official website and notices
- Physics Wallah: SSC CGL photo and signature size 2026
- IBPS: official website and recruitment notifications
- Protean (NSDL): online PAN application with digital signature, scanning specifications
- NTA: NEET (UG) official website
- NIST: prefixes for binary multiples (KB, KiB, MB, MiB)
- MDN Web Docs: HTMLCanvasElement.toBlob() and JPEG quality
Related Guides
- Resize Image to 10KB Online Free (Photo or Signature Under 10 KB)
- Resize Image to 20KB Online Free (Compress Photo to 20 KB)
- Resize Image to 30KB Online Free (Photo or Signature Under 30 KB)
- KB to MB Converter (and MB to KB): Both 1,000 and 1,024 Answers
- Reduce Image Size in KB Online Free: Every Photo and PDF Size
Sizes checked against the portals and notifications listed above in October 2026. Your photo is processed on your own device and never uploaded.
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