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SSC signature resizer (10–20KB)

SSC application forms almost always reject a signature outside a narrow 10KB to 20KB band — too small looks like a broken upload, too large gets bounced by the file-size check. This resizer targets that exact range at the usual 140×60 pixel size, signature only, so you are not hunting through a combined photo-and-signature tool for one file.

  • No upload — files stay on your device
  • Works offline once loaded
  • Free forever, no signup, no watermark
Drop a photo here, or tap to choose JPG, PNG, WebP or HEIC from your phone — nothing is uploaded
Target file size
Custom target (KB)
Width (px, optional)
Height (px, optional)

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Finding the best quality that fits {{ targetLabel }}…
Result preview Resized photo preview
  • Original {{ sourceSizeLabel }}
  • Now {{ resultSizeLabel }}
  • Saved {{ savedPercent }}%
  • Pixels {{ resultWidth }}×{{ resultHeight }}

Within your {{ targetLabel }} target.

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How to use this tool

  1. Sign on plain paper

    Use black or blue ink on plain white paper, then photograph it in good light or scan it, and add that file here.

  2. Keep the 10–20 KB range selected

    This preset guarantees the file lands above the 10KB minimum as well as under the 20KB maximum — most SSC rejections are actually the minimum, not the maximum.

  3. Download and upload it

    Check the signature is still legible in the preview, then download and use it in the signature field of your SSC application.

Questions people ask

Why does SSC reject my signature file even though it is small enough?

SSC forms usually enforce a minimum size as well as a maximum, so a signature compressed down to 3KB or 4KB fails the same validation as one that is too large. The 10–20 KB range preset here pads the file so it clears both checks at once.

Is this the same as the SSC photo resizer?

No — this page is signature-only, sized for the signature field specifically. Use the SSC photo resizer for the photograph, which has a different KB range and pixel size.

Is my photo uploaded to a server?

No. The resizing happens inside your own browser using the Canvas API, and this site has no upload endpoint at all. You can switch off your internet connection after the page loads and the tool still works.

Will resizing to a small KB size ruin my photo?

Quality does drop as the file gets smaller, but the tool searches for the highest JPEG quality that still fits your target instead of guessing. The preview shows exactly what you are about to download, so you can judge it before saving.

Can I set the pixel width and height as well as the KB size?

Yes. Enter a width and height and the photo is resized to those dimensions first, then compressed to your KB target. Leave them blank to keep the original proportions.

Does it work on a phone?

Yes. Tapping the drop zone opens your camera or gallery, and the download works the same way it does on a desktop. Most forms are filled on a phone, so the tool is built for that first.

Related tools

Free because it costs us nothing to run: your browser does the work, not our servers. Made by Dynamb Technologies — we build software for businesses.