Signature Resize for Online Forms

Crop your signature, resize it to 140 x 60 pixels and get a JPG between 10 and 20 KB, the size bank exams like IBPS and SBI and many other forms ask for.

140 x 60 px10 to 20 KBJPG Runs on your device

Signature Resize · Step 1 of 3 · Add your photo

Drop an image to resize

or paste with Ctrl+V · JPG PNG WebP HEIC GIF · max 25 MB

140 x 60 px · 10 to 20 KB

Processed on this device. Nothing is uploaded.

Example

Before and after

We ran this sample through the signature resize tool above. The numbers under each image are measured from the real files.

Sample input: 2400 x 1500 px · 74.3 KB · JPG — **Before**2400 x 1500 px · 74.3 KB · JPG

Result from this tool: 140 x 60 px · 10.5 KB · JPG — **After**140 x 60 px · 10.5 KB · JPGThe actual file the tool made

Sample made by the SizePort team, not a real document.

How to

How to resize a signature

1
Sign and take a photo
Sign on plain white paper with a black or blue pen, then photograph it from straight above in daylight.
2
Crop tightly
Fit the frame around the ink. It is locked to the 140 x 60 shape, so the signature is never stretched.
3
Download
A 140 x 60 pixel JPG between 10 and 20 KB, ready to upload.

Why this size

Signature size: 140 x 60 pixels, 10 to 20 KB

Bank exams such as IBPS and SBI, and many other online forms, ask for a signature of 140 x 60 pixels (about 3.5 x 1.5 cm) as a JPG between 10 and 20 KB. A phone photo of a signature is several MB and the wrong shape, so it gets rejected.

The tool crops your signature to the 140 x 60 shape, resizes it and fits the file into 10 to 20 KB. Such a small image is often under 10 KB, so the tool adds harmless padding to reach the minimum. The signature itself does not change.

Some forms want something else: SSC asks for 6 x 2 cm, RRB for 30 to 49 KB, and the PAN card portals have their own sizes. Their pages are linked below.

Form	Signature rule
IBPS and SBI	140 x 60 px, 10 to 20 KB
SSC	6 x 2 cm, 10 to 20 KB
RRB	30 to 49 KB
UPSC	3 signatures, 20 to 100 KB
PAN (NSDL)	4.5 x 2 cm, up to 50 KB

Use cases

When you need this

Exam applications

Bank, board, university and entry-test forms.

Job portals

Public service commission and recruitment forms.

Bank and KYC forms

Online account opening with a signature upload.

Government services

Licence, ID and passport renewal forms.

Tips

Tips that make a difference

Sign a little larger

Sign bigger than usual and fill the frame when you crop. Thin, tiny strokes get faint once the image is only 60 pixels tall.

Need a size in cm?

For a size such as 6 x 2 cm, use the SSC page or Resize in cm. The Exam Kit makes the signature for every exam you apply to at once.

FAQ

Signature Resize: questions

Usually 140 x 60 pixels as a JPG between 10 and 20 KB. Check your form: SSC wants 6 x 2 cm and RRB 30 to 49 KB.

Add a photo of your signature, crop it and download. The tool resizes it to 140 x 60 pixels and lands the file between 10 and 20 KB automatically.

About 3.5 x 1.5 cm on screen (at 100 DPI). Forms that give the size in cm usually mean the same small, wide signature.

Sign on plain white paper with a dark pen, then take a photo from straight above in daylight, with no shadow of your hand or phone across the page.

Yes. For a size in cm, such as 6 x 2 cm, use the SSC page or Resize in cm and type the width and height.

Yes. Signatures are simple dark lines, so they stay crisp even in very small files.

Yes. A file between 10 and 20 KB is under 50 KB, so it is accepted. If a form needs at least 30 KB, use the RRB page or Increase image size in KB.

No. Your signature never leaves your device.

Checked

How we checked this page

Checked by the SizePort team on 3 October 2026.

We compare every size and rule on this page with the official sources below, and test the tool with sample photos before it goes live. Rules and platforms change, so if something here is out of date, tell us and we will correct it.

How the tool works

The tool scales your image once, from the original pixels, to the size you set. It then compresses the JPG only as far as needed to stay under the KB limit, and pads it if it falls below the minimum. Everything happens in your browser; your images are never uploaded.