Signature Resizer in KB
Reduce a signature to the exact KB your form asks for, from 5 KB up to 50 KB, without it turning faint or blurry.
Upload a photo of your signature to PhotoResizer, type the KB your form asks for, and download a form-ready JPEG. Most exams want 10-20 KB at about 140 x 60 px, but the limit varies by exam - the table below lists the common ones.
Signature size in KB, exam by exam
| Exam / form | Signature file size | Dimensions |
|---|---|---|
| SSC (CGL, CHSL, GD) | 10 KB - 20 KB | about 140 x 60 px |
| IBPS / bank exams | 10 KB - 20 KB | about 140 x 60 px |
| UPSC | 10 KB - 20 KB | about 140 x 60 px |
| NICL / insurance | 10 KB - 20 KB | about 140 x 60 px |
| ISRO | 10 KB - 20 KB | about 140 x 60 px |
| RRB / railways | 10 KB - 20 KB | about 140 x 60 px |
| EPFO SSA | 20 KB - 50 KB | about 140 x 60 px |
| UPSSSC | 30 KB - 50 KB | 3.5 x 1.5 cm |
| TCS NQT / iON | up to 20 KB | Portal dependent |
Why signatures get rejected
Compressing too far leaves the strokes broken or grey, and many boards reject a signature written entirely in capital letters. A signature photographed at an angle, on lined or coloured paper, or with a shadow across it also fails. Sign in black ink on plain white paper, then resize.
How to resize a signature in KB
- Sign on white paper in black ink, then photograph or scan it straight on.
- Open PhotoResizer and upload the signature image.
- Enter the KB your form asks for - 10, 20, 30 or 50 KB - and the pixel size if given.
- Crop the whitespace so the signature fills the frame, then download the JPEG.
Frequently asked questions
How do I resize my signature in KB?
Open PhotoResizer, upload a photo of your signature, type the target KB your form asks for, and download. It compresses to the limit while keeping the strokes visible - free and in your browser.
What is the normal signature size in KB for exams?
Most Indian government exams ask for 10 KB to 20 KB in JPEG at roughly 140 x 60 pixels. UPSSSC wants 30 to 50 KB and EPFO 20 to 50 KB, so check your notification.
How do I reduce my signature from 100 KB to 20 KB?
Upload it to PhotoResizer and set the target to 20 KB. It reduces the file without letting the strokes break up, which is what happens when you keep re-saving in a phone gallery app.
My signature is too small in KB - how do I increase it?
Rescan or rephotograph it at a higher resolution rather than upscaling a small file, then set your target inside the required range. Forms like UPSSSC reject signatures below their minimum.
What pixel size should a signature be?
About 140 x 60 pixels is the standard for most exam portals, matching a 3.5 x 1.5 cm scan. Some forms state centimetres instead of pixels.
Is the signature resizer free?
Yes - free, no sign-up, no watermark, and private, because the resizing happens entirely in your browser.
Related guides
Resize your signature to the exact KB - free
Set an exact KB and pixel size in seconds — for exams, passport, PAN, voter ID and any online form. No watermark, no sign-up, works right in your browser.
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