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PDFImageTools

Compress an image to 15 KB

Aim at a hard 15 KB limit. The tool searches for the highest quality that still fits, and tells you the exact final size.

Your file is processed on your device and is never uploaded.

What this tool does

  • Automatically finds the best quality that fits 15 KB
  • Shows the original and final size side by side
  • Reduces dimensions too, if quality alone is not enough

How to use compress image to 15kb

  1. Add your image

    Drop in a JPG, PNG or WebP file.

  2. Let it find the setting

    The tool tries repeatedly until it lands at or under 15 KB.

  3. Check and download

    Compare against the original, then save.

Frequently asked questions

Why do I need an image under 15 KB?

15 KB turns up on exam and recruitment portals that ask for a signature scan alongside a slightly larger photograph.

Can any image be compressed to 15 KB?

Comfortably for a signature or a line drawing. For a face photo it is very tight, and the tool will reduce the dimensions to reach it — check the preview before you rely on it.

What will the result actually look like at 15 KB?

A signature or stamp comes through cleanly at full size. A face photo lands near 400 pixels on the long edge, which suits the small box these forms display it in but is not enough to print.

How does it hit the target?

It repeatedly re-encodes the image, adjusting quality by binary search until it finds the highest setting that still fits. If quality alone cannot get there, it progressively reduces the pixel dimensions as well. The whole search runs on your device, typically in under a second.

Which format gives the smallest file?

PNG for signatures and line art, JPG for faces and photographs. At this size the choice is decisive rather than marginal — it can be the difference between fitting and not fitting.