# Signature Resizer for Online Forms

> Resize your signature to 10KB or 20KB and 140 × 60 px for IBPS, SBI, SSC and other forms. Cleans the background to pure white automatically. Free and private.

Take a photo of your signature on white paper and turn it into a clean, sharp image of the exact size the form wants, such as **140 × 60 px under 20 KB**.

Use the free tool here: https://saraltools.in/signature-resize/

## How to get a clean signature image

1. Sign 2 or 3 times on plain white paper with a black ink pen. Pick the best one.
2. Take the photo in daylight, holding the phone straight above the paper to avoid shadows.
3. Open it here and choose "Crop to fill", so the signature fills the box.
4. Adjust the **Ink threshold** until the background is white and all strokes are visible.
5. Download the JPG and upload it to your form.

## Common signature requirements

| Form type | Typical size | Typical KB |
| --- | --- | --- |
| Bank exams (IBPS, SBI) | 140 × 60 px | 10–20 KB |
| SSC | 4.0 × 2.0 cm | 10–20 KB |
| UPSC | 350–1000 px | 20–300 KB |

Typical values from past notices. Always check the current notification.

Now resize your photo with the [photo resize to KB tool](https://saraltools.in/resize-image-to-kb/) and check your age on the cut-off date with the [age calculator](https://saraltools.in/age-calculator/).

## Frequently asked questions

### How do I make a signature image for an online form?

Sign with a black or blue pen on plain white paper, take a clear photo with your phone, and open it here. Choose the size and KB limit, keep 'Clean background' on, and download the JPG.

### What signature size do bank exam forms need?

IBPS and SBI forms have commonly asked for 140 × 60 px and 10–20 KB. Check the current notification, as rules can change.

### What does Clean background do?

It turns the grey or shadowy paper into pure white and darkens the ink, so your signature looks crisp and the file size drops. Move the Ink threshold slider if thin strokes disappear or the background stays grey.

### Can I use a digital signature drawn on the phone?

Most forms want a scan or photo of your real handwritten signature. Check the instructions in your notification.

## Related tools

- [Resize Photo to KB for Exam Forms](https://saraltools.in/resize-image-to-kb/): Make a photo exactly under 20, 50 or 100 KB for SSC, IBPS, UPSC forms.
- [Image Compressor](https://saraltools.in/image-compressor/): Shrink many JPG, PNG or WebP images at once, in your browser.
- [Passport Size Photo Maker](https://saraltools.in/passport-photo-maker/): Crop to 3.5 × 4.5 cm and get a 4×6 or A4 print sheet.
- [Image to PDF Converter](https://saraltools.in/image-to-pdf/): Combine JPG or PNG photos into one PDF, in any order.
- [Merge PDF Files](https://saraltools.in/merge-pdf/): Combine several PDFs into one, in your chosen order.

Last updated: 2026-11-02

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SaralTools (https://saraltools.in/): Free Indian calculators, document makers and photo tools. Contact: help@saraltools.in. Results are estimates, not tax, legal or financial advice.