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Signature Resizer

Resize your signature to 140×60 pixels and 10 to 20KB in JPG format — the most common requirement across exam portals. Everything happens on your device, nothing gets uploaded anywhere.

Drop your photo here

or click to browse • JPG, PNG, WEBP, HEIC

Max 50MB • No signup needed • 100% private

Total Privacy — We Don't Save It Anywhere (0 Uploads Policy)

Your signature is never uploaded in the first place. The entire compression process — decoding, analyzing, re-encoding, checking the file size — happens locally, inside your own browser, on your own device.

Why Signature Compression Matters

Almost every competitive exam requires a scanned signature upload as part of the online application. The portal enforces strict file size and dimension limits, and getting it wrong is one of the most common reasons an application gets flagged. Unlike a photo, a signature relies on thin, high-contrast lines, and aggressive compression can blur fine strokes. This tool resizes and compresses your signature to the correct specification automatically.

How to Achieve 10KB to 20KB Signature Size (140×60px)

Dimensions: 140 × 60 Pixels (3.5cm × 1.5cm)

Most exam portals require signatures at 140×60 pixels, which translates to 3.5cm × 1.5cm at standard resolution.

File Size: 10 KB to 20 KB Target

For portals that require signature resize 10 to 20 kb, this sign size reducer automatically compresses your scan while keeping strokes sharp. Set your target size in this sign resizer in kb to meet portal requirements.

Format: JPEG / JPG Only

Most exam portals only accept JPEG/JPG files. If you have a PNG or other format, this tool converts it to JPG automatically during compression.

Black Ink on White Paper

Sign using black or dark blue ink on plain white paper. The scan should be clear and sharp.

Step-by-Step Signature Resize in KB

  • 1Step 1 — Sign on plain white paper. Use a dark pen for good contrast, and keep the signature reasonably sized.
  • 2Step 2 — Scan or photograph it clearly. Even lighting, no shadows, and a straight-on angle give the cleanest source image.
  • 3Step 3 — Upload to our sign resizer in KB. Choose whether you prefer to see dimensions in centimeters (3.5×1.5cm) or pixels (140×60px).
  • 4Step 4 — Automatic 10kb to 20kb signature size compression. The tool applies the correct dimensions and compresses your file precisely into the target KB range.
  • 5Step 5 — Download and submit. Your signature file is ready for your exam portal.

Frequently Asked Questions

What is the standard signature size for exam forms?

Most exam portals require signatures at 140×60 pixels (3.5cm × 1.5cm), with file sizes between 10KB and 20KB in JPG format. Achieving a clean 10kb to 20kb signature size is easy with this sign size reducer, making signature resize 10 to 20 kb fast and reliable.

How do I do signature resize in KB for online forms?

Upload your scanned signature, select your target KB range (like 10–20KB), and our sign resizer in kb converts and compresses your image in under a second.

What's the difference between CM and PX presets?

Both presets produce the exact same output — 140 × 60 pixels. The CM preset shows dimensions as 3.5×1.5cm, while the PX preset shows them as 140×60px.

Can I use this for competitive exams?

Yes — the 140×60 pixel dimension and 10–20KB file size are the most common signature requirements across exam portals.