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Resize by File Size

Resize Signature to 20 KB

Shrink a scanned signature down to 20 KB in your browser — perfect for exam and job application forms that demand a tiny signature file, with no upload and no sign-up.

💾 ≤ 20 KB 🖼 JPG output 🔒 Private in-browser ✓ Free tool

Open Resize Signature to 20 KB →

How to resize a signature to 20 KB — step by step

1
Open the toolClick “Open Resize Signature to 20 KB” above and the resizer opens with this preset ready to go.
2
Add your signatureDrag it in or pick a file. JPG, PNG, HEIC and WEBP are all supported, up to 15 MB.
3
Crop & processFine-tune the crop if you like, then hit Process — the tool reaches the 20 KB target on its own.
4
DownloadSave the resized signature, ready to upload wherever you need it.

Start now — free & instant →

Why resize a signature to 20 KB?

Government and exam application portals (UPSC, SSC, IBPS, SBI, NTA and more) usually ask you to upload a scanned signature under a strict size cap — commonly around 20 KB. If your scan is heavier than that, the form simply refuses it, and you cannot move ahead with your application until you bring the file size down.

The old way — firing up Paint, Photoshop or GIMP — means installed software and a string of manual steps. This browser-based resizer does the same job in a single click, with nothing uploaded, no sign-up and no charge.

Tips for the best result

  • Sign in dark blue or black ink on plain white paper, then scan or photograph it in good light.
  • Crop tightly to the signature itself so the tool spends its budget on the strokes, not empty margins.
  • Start from a clean, high-contrast scan — it compresses to 20 KB more gracefully than a blurry phone snap.
  • If the result looks patchy, re-scan at a slightly higher resolution and resize again.
Good to know: the output is always saved as JPEG, which is the format Indian exam and ID portals expect — so your file uploads cleanly the first time.

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Frequently asked questions

Is the Resize Signature to 20 KB tool free?
Yes, it is completely free. There is no account to create, no watermark on the output, and no cap on how many files you can process.
Is my signature kept private?
Completely. Everything runs locally in your browser using HTML5 Canvas, so your file is never sent to a server and never leaves your device.
Does it work on a phone?
Yes. Open the page in Chrome or Safari on any Android phone or iPhone, add your file and download the result — no app to install.
Which file formats can I use?
JPG, JPEG, PNG, WEBP and HEIC/HEIF on supported browsers. The output is saved as JPEG so it stays compatible with Indian exam and ID portals.
Do I need to install anything?
No. The tool runs entirely in the browser — Chrome, Firefox, Edge or Safari — on both desktop and mobile.
Will resizing to 20 KB lower the quality?
The resizer keeps quality as high as it can while meeting the 20 KB target. At very small limits like 20 KB a little softening is unavoidable, but the result is still accepted by exam portals.
Why do exam portals set a KB file-size limit?
Portals like SSC, UPSC, IBPS, NTA and RRB enforce KB caps to keep their databases light and let uploads finish quickly on slow connections. Go over the limit and the upload form rejects the file.

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