How do I resize a signature image for an exam application?

Pick your preset — SSC and IBPS at 140×60 px, UPSC at 600×600 px, CAT at about 302×132 px, or Custom — then drop in your signature scan. The image is resized to those exact pixel dimensions in your browser and shown as a preview with its file size.

Is my signature scan uploaded to a server?

No. Resizing runs on an HTML5 canvas inside your browser, so the file is read from your device, redrawn at the target size, and handed straight back. Your signature is a legal identifier used on bank and identity documents, which is exactly why it should not be uploaded anywhere.

Will resizing stretch or distort my handwriting?

No. The tool scales your signature to fit inside the target box while keeping its original proportions, then pads the leftover space rather than stretching to fill it. Loops and stroke widths stay in the same ratio as your original scan.

What is the padding colour, and does PNG differ?

JPG and WebP output pad with solid white, which is what recruitment portals expect. PNG output leaves the padding transparent instead, since PNG supports an alpha channel. Choose JPG unless your portal specifically asks for PNG.

Which format should I upload to a portal?

JPG, in almost every case. SSC, IBPS, UPSC and most state recruitment portals specify JPG or JPEG, and their validation scripts reject other formats outright. JPG is the default here for that reason.

How do I get my signature under a 20 KB or 50 KB limit?

This tool sets dimensions, not file size. Resize first so the pixels are correct, then run the result through our Signature Compressor, which targets a specific kilobyte ceiling without changing the dimensions you just set.

Should I crop the scan before resizing?

Yes, and it makes a visible difference. Crop close to the ink so the signature fills the frame, otherwise the resize shrinks your handwriting to fit a mostly empty page and it arrives at the portal too small to read.

My exam is not in the preset list. What do I use?

Choose Custom and type the exact width and height your notification specifies, anywhere from 10 to 4000 pixels. That covers NBEMS medical exams, state PSC forms, RRB applications, and university portals with their own dimensions.

Signature Resizer

Resize any digital signature image to exact pixel dimensions or file size in KB. Perfect for official forms, applications, and documents. 100% free.

Files never leave your deviceInstant — no upload waitFree, no sign-up

Select Exam / Form Specification Preset:

Choose your signature photo or scan or drag & drop100% private — resizes signature to 140×60px inside browser

or import from

Output Format:

A signature resizer reshapes a scan of your handwritten signature to the exact pixel dimensions an application portal demands. Choose an exam preset or type your own size, and the image is resized in your browser with its proportions intact and the spare space padded. Your signature is never uploaded.

Why portals reject signature uploads

Government recruitment and university admission portals validate uploads with automated scripts, and those scripts are unforgiving. A signature a few pixels outside the specified width, in the wrong format, or over the file size ceiling is rejected outright — often with an error message that does not say which rule you broke. During a closing-day rush that is a genuinely stressful problem, because the form will not submit until the image passes. Getting the dimensions exactly right first is the fastest way through.

Aspect-preserving resize, not a stretch

Most general-purpose resizers squash an image into the target rectangle, which distorts handwriting badly: a signature forced from a wide scan into a square box comes out compressed and unrecognisable. This tool scales your signature to fit inside the target box at its original proportions, then fills the remaining space with padding. JPG and WebP output pads in solid white, matching what portals expect. PNG output leaves the padding transparent, because PNG carries an alpha channel. The preview shows the exact result and its file size before you download.

Signature specifications by exam

Figures published in recent notification cycles. Specifications change between sessions — always confirm against the current official PDF before uploading.
Exam	Dimensions	File size	Preset
SSC (CGL, CHSL, GD)	140×60 px	10–20 KB	SSC / IBPS
IBPS bank exams	140×60 px	10–20 KB	SSC / IBPS
UPSC Civil Services	350×350 to 1000×1000 px	20–300 KB	UPSC (600×600)
CAT / IIM	80×35 mm (~302×132 px)	up to 80 KB	CAT / IIM
JEE Main	Per current bulletin	10–100 KB	Custom
NEET UG	Per current bulletin	10–100 KB	Custom
NBEMS (NEET PG, FMGE, MDS)	Signed in a 1.5×3.5 cm box	under 80 KB	Custom

Two things worth knowing about that table. Several boards revise the numbers between sessions — JEE Main's signature ceiling has moved in recent cycles — so a figure copied from a coaching blog is not trustworthy. And IBPS and NBEMS applications additionally require a live webcam capture during the form itself, which no resizer can prepare for you.

Scanning a signature that passes first time

Sign in black or dark blue ink on plain white unlined paper. Most portals require it, and contrast helps.
Photograph or scan square-on in even daylight, avoiding the shadow your hand or phone casts.
Crop tight to the ink before resizing, leaving only a thin margin.
Pick the preset, or type the exact dimensions from your notification into Custom.
Keep JPG as the output format, then check the reported file size against your portal's ceiling.

Why this runs on your device

A signature is not an ordinary image. It is the mark used to authorise bank instructions, loan agreements, and identity documents, and a clean digital copy of it is genuinely valuable to anyone willing to misuse it. Uploading one to a free conversion site means a stranger's server holds that copy indefinitely. Everything here happens on a canvas in your own browser, so there is no upload and no remote copy to worry about. Keep your original scan somewhere private too, not in a shared photo library.

The rest of the application

Dimensions are only half the requirement. Once the size is right, thesignature compressor brings the file under a 20 KB or 50 KB ceiling, and thephoto resizer handles the passport-style photograph that sits alongside it. The exam tools hub collects everything else these forms ask for, including theage limit calculator for checking you are still eligible.

Frequently Asked Questions

How do I resize a signature image for an exam application?
Pick your preset — SSC and IBPS at 140×60 px, UPSC at 600×600 px, CAT at about 302×132 px, or Custom — then drop in your signature scan. The image is resized to those exact pixel dimensions in your browser and shown as a preview with its file size.
Is my signature scan uploaded to a server?
No. Resizing runs on an HTML5 canvas inside your browser, so the file is read from your device, redrawn at the target size, and handed straight back. Your signature is a legal identifier used on bank and identity documents, which is exactly why it should not be uploaded anywhere.
Will resizing stretch or distort my handwriting?
No. The tool scales your signature to fit inside the target box while keeping its original proportions, then pads the leftover space rather than stretching to fill it. Loops and stroke widths stay in the same ratio as your original scan.
What is the padding colour, and does PNG differ?
JPG and WebP output pad with solid white, which is what recruitment portals expect. PNG output leaves the padding transparent instead, since PNG supports an alpha channel. Choose JPG unless your portal specifically asks for PNG.
Which format should I upload to a portal?
JPG, in almost every case. SSC, IBPS, UPSC and most state recruitment portals specify JPG or JPEG, and their validation scripts reject other formats outright. JPG is the default here for that reason.
How do I get my signature under a 20 KB or 50 KB limit?
This tool sets dimensions, not file size. Resize first so the pixels are correct, then run the result through our Signature Compressor, which targets a specific kilobyte ceiling without changing the dimensions you just set.
Should I crop the scan before resizing?
Yes, and it makes a visible difference. Crop close to the ink so the signature fills the frame, otherwise the resize shrinks your handwriting to fit a mostly empty page and it arrives at the portal too small to read.
My exam is not in the preset list. What do I use?
Choose Custom and type the exact width and height your notification specifies, anywhere from 10 to 4000 pixels. That covers NBEMS medical exams, state PSC forms, RRB applications, and university portals with their own dimensions.