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Exam Signature Resizer

100% Free

Resize a photo of your signature to the exact portal spec — MahaDBT (256×64 px, 10–20 KB), MPSC, SSC, UPSC, PAN — with one-click background cleaning. Free, in your browser.

100% in your browser
Exact px + KB
One-click clean background

Resize your signature to the exact portal spec

100% FREE · runs in your browser · nothing is uploaded

महाडीबीटी शिष्यवृत्ती · JPEG · MahaDBT portal signature upload: 256×64 px JPG between 10 and 20 KB, black ink on white paper. The strict 10–20 KB band rejects most phone photos — this tool compresses to land inside it.

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How to Use

  1. 1 Pick the spec you need — MahaDBT, MPSC, SSC, Maharashtra Police, UPSC, PAN card, bank forms or a generic 4:1 crop.
  2. 2 Sign with a black pen on plain white paper, photograph it from straight above, and upload the photo (JPG, PNG or WEBP).
  3. 3 Crop tightly around the signature inside the exact aspect frame — drag, zoom and rotate.
  4. 4 Toggle 'Clean background' to turn greyish paper pure white and darken the ink — compare before/after instantly.
  5. 5 The tool resizes to the exact pixels and compresses the JPG into the required KB band, showing the ACTUAL measured output before you download.

Features

  • MahaDBT Scholarship — 256×64 px JPG, strict 10–20 KB
  • MPSC Application — 3.5×1.5 cm (413×177 px), up to 50 KB
  • SSC Exam — 140×60 px, 10–20 KB
  • Maharashtra Police Bharti — 256×64 px, 10–20 KB
  • UPSC Application — 20–300 KB JPG
  • PAN Card — 2×4.5 cm at 200 DPI, up to 60 KB
  • Bank & KYC forms — generic 350×100 px under 50 KB
  • Generic 4:1 signature crop for any unspecified form
  • One-click background cleaning: paper → pure white, ink → pure black
  • Before/after toggle so you can compare the cleaned result instantly
  • Exact KB compression with the real file size shown before download
  • PNG download on presets that don't mandate JPG

Why it Matters

Signature uploads fail more often than photo uploads: the specs are tinier (10–20 KB!), the source is a phone photo of paper with grey shadows, and portals reject anything outside the band without saying why. This tool crops to the exact aspect, whitens the paper, darkens the ink and binary-searches JPEG quality until the file lands inside the band — the daily unblock for CSC operators, xerox shops and students filling MahaDBT and exam forms.

★★★★★

Use Cases

CSC / Seva Kendra Operators

MahaDBT and exam-form signature uploads rejected for size? Produce the exact 256×64 px, 10–20 KB file the portal wants on the first try.

Xerox & Print Shops

Customer signs on paper, you photograph it on the counter, and the cleaned, exact-spec file is ready in under a minute.

Students & Job Applicants

Scholarship, exam and job applications all want a signature image at a strange tiny spec. Make it at home from one phone photo.

Privacy-conscious Users

Your signature is sensitive. Here it never leaves your device — every step runs in your browser, with no upload and no account.

How to use

  1. Pick the spec. Each preset carries the published pixel size and KB band — the dropdown shows all of it up front, with honest notes about where the spec comes from.
  2. Photograph your signature. Black pen, white paper, phone held flat above the page in good light.
  3. Upload and crop. The crop frame is locked to the spec’s exact aspect ratio, so the output can never be stretched. Crop tightly — empty paper wastes KB.
  4. Clean the background. One toggle turns greyish paper pure white and darkens the ink, using fixed, tested thresholds. Flip it off to compare before/after instantly.
  5. Download. The signature is drawn at the exact required pixels and the JPG quality is binary-searched until the file fits the KB band. The actual measured output — pixels and KB — is shown as chips before you download. Presets without a JPG mandate also offer a lossless PNG.

Why the output is trustworthy

Everything — pixels, KB, the cleanup thresholds — is plain, deterministic code that runs in your browser, with unit tests behind the math. There is no AI, no server, no account: the same input always produces the same output, and your signature never leaves your device.

Common rejection reasons this tool prevents

  • Wrong file size — compressed into the exact KB band, never just “small enough”.
  • Wrong dimensions — output is drawn at the exact required pixels.
  • Stretched signature — the crop frame is locked to the spec’s aspect ratio.
  • Grey / shadowed background — the cleanup pass whitens the paper and darkens the ink.
  • Wrong format — every portal preset outputs JPG.

What it can’t fix: a faded pencil signature, ruled paper lines through the strokes, or a blurry photo. Sign with a black pen on plain paper and the pipeline handles the rest.

The companion tool

The same forms that want this signature also want an exact-spec photo. The free Passport Photo Maker handles that half — MahaDBT, MPSC, SSC, UPSC and PAN photo presets with the same measured px + KB pipeline.

Frequently Asked Questions

Why do portals demand a signature under 20 KB?
Government portals were built for slow connections and small storage budgets, so they enforce hard file-size bands — MahaDBT's signature band is 10–20 KB — and auto-reject anything outside them. A 21 KB file fails just like a 2 MB one. This tool binary-searches JPEG quality until the file lands inside the band at the best possible quality, then shows you the measured KB.
What is the exact MahaDBT signature size?
256×64 pixels, JPG, between 10 and 20 KB, signed in black ink on white paper. Pick the MahaDBT preset and the tool produces exactly that, with the actual pixels and KB shown before you download. Portals occasionally change limits mid-cycle, so cross-check the live portal if an upload still fails.
What is the MPSC signature specification?
MPSC's online application asks for a 3.5×1.5 cm signature as a JPEG up to 50 KB. The MPSC preset crops at exactly that aspect and outputs 413×177 px (3.5×1.5 cm at 300 DPI). Check the current advertisement PDF for cycle-specific rules.
What does 'Clean background' actually do?
It walks every pixel of your cropped signature: bright greyish pixels (the paper) become pure white, dark pixels (the ink) become pure black, and the in-between pen edges are kept so the stroke stays smooth. A pure-white background also compresses far better, which helps tiny KB bands. Toggle it off any time to compare with the original.
What pen and paper should I use?
A black ballpoint or gel pen on plain white, unruled paper. Sign at your normal size — not tiny — so the strokes stay thick after downscaling. Blue ink usually works but several portals (including MahaDBT) explicitly ask for black, so black is the safe default.
How should I photograph the signature?
Hold the phone flat, directly above the paper, in daylight or bright even room light, and avoid your own shadow falling on the page. Fill the frame with the signature area. Then crop tightly in the tool — extra empty paper wastes the few KB the portal allows.
Is my signature uploaded to a server?
No. Everything — cropping, background cleaning, resizing and KB compression — runs in your browser. The image never leaves your device, there is no account and nothing is stored. That matters for a signature, which is exactly the kind of image you don't want sitting on someone's server.
How much does it cost?
Nothing. The whole tool is free and unlimited — no sign-up, no credits, no watermark. It's the companion to our free Passport Photo Maker, which handles the photo half of the same government forms.

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