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SSC signature resizer (10–20KB)

SSC application forms almost always reject a signature outside a narrow 10KB to 20KB band — too small looks like a broken upload, too large gets bounced by the file-size check. This resizer targets that exact range at the usual 140×60 pixel size, signature only, so you are not hunting through a combined photo-and-signature tool for one file.

  • No upload — files stay on your device
  • Works offline once loaded
  • Free forever, no signup, no watermark
Drop a photo here, or tap to choose JPG, PNG, WebP or HEIC from your phone — nothing is uploaded
Target file size
Custom target (KB)
Width (px, optional)
Height (px, optional)

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Finding the best quality that fits {{ targetLabel }}…
Result preview Resized photo preview
  • Original {{ sourceSizeLabel }}
  • Now {{ resultSizeLabel }}
  • Saved {{ savedPercent }}%
  • Pixels {{ resultWidth }}×{{ resultHeight }}

Within your {{ targetLabel }} target.

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From a free tool to your own software

Software for exam, recruitment and application portals

Every exam and job form sets its own photo and signature limits, and a rejected upload often surfaces only after the fee is paid or the deadline has passed. Coaching institutes, recruitment teams and form-filling centres handling hundreds of applicants need those checks inside the upload step itself, so each file is resized, validated and stored correctly the first time.

  • Candidate application portals

    Registration forms that resize photos and signatures to your own KB and pixel rules on upload, and tell the applicant exactly what to fix before they submit.

  • Workspaces for form-filling centres

    Your staff prepare photos, signatures and certificates for many applicants in one place, with a preset for each exam notice and a record of what was submitted.

  • Student apps for coaching institutes

    An app that follows upcoming exam notifications for each student, collects their documents once and reminds them of form deadlines and requirements.

  • Recruitment and KYC onboarding flows

    Onboarding for employers, banks and NBFCs that captures ID photos and signatures from a phone camera, crops and compresses them, and flags blurry images.

Who we build this for: Coaching institutes, recruitment agencies, exam application centres, HR teams and banks collecting applicant documents online.

This tool runs entirely in your browser. The team that built it designs custom software for businesses and runs DigiSign, our own signage platform, in production.

Plan an application portal Web & Mobile Applications

How to use this tool

  1. Sign on plain paper

    Use black or blue ink on plain white paper, then photograph it in good light or scan it, and add that file here.

  2. Keep the 10–20 KB range selected

    This preset guarantees the file lands above the 10KB minimum as well as under the 20KB maximum — most SSC rejections are actually the minimum, not the maximum.

  3. Download and upload it

    Check the signature is still legible in the preview, then download and use it in the signature field of your SSC application.

Questions people ask

Why does SSC reject my signature file even though it is small enough?

SSC forms usually enforce a minimum size as well as a maximum, so a signature compressed down to 3KB or 4KB fails the same validation as one that is too large. The 10–20 KB range preset here pads the file so it clears both checks at once.

Is this the same as the SSC photo resizer?

No — this page is signature-only, sized for the signature field specifically. Use the SSC photo resizer for the photograph, which has a different KB range and pixel size.

Will resizing to 20KB ruin my photo?

Quality does drop as the file gets smaller, but the tool searches for the highest JPEG quality that still fits the 20KB limit instead of guessing. The preview shows exactly what you are about to download, so you can judge it before saving.

Can I set pixel dimensions as well as the 20KB target?

Yes. Enter a width and height and the photo is resized to those dimensions first, then compressed to your KB target. Leave them blank to keep the original proportions.

Is my photo uploaded to a server?

No. The resizing happens inside your own browser using the Canvas API, and this site has no upload endpoint at all. You can switch off your internet connection after the page loads and the tool still works.

Does it work on a phone?

Yes. Tapping the drop zone opens your camera or gallery, and the download works the same way it does on a desktop. Most forms are filled on a phone, so the tool is built for that first.

Related tools

Who makes these tools

Free because it costs us nothing to run: your browser does the work, not our servers. Made by Dynamb Technologies — we build software for businesses.