Standard signature dimensions
SSC, UPSC, and most banking portals: 140×60 px, JPG, under 20 KB. Some forms ask for 300×80 px or 200×100 px. We let you pick the preset and handle the rest.
Free · 100% browser-based
Signature Resize Tool — Online & Free
Resize a scanned signature to the exact pixel dimensions and file size limit demanded by an online form. Most government and exam portals require signatures at 140×60 px, under 20 KB — we hit that exactly.
Private
Your file never leaves your browser.
Instant
Most files process in under a second.
No watermark
Output is byte-for-byte yours.
How to scan a clean signature
Sign on plain white paper with a black pen. Scan or photograph from directly above with good lighting. Crop to just the signature before resizing for best results. Everything happens locally in your browser — your file is never uploaded to our servers, which means it's safe to use with personal photos, IDs, and confidential documents.
Why dimensions and KB matter
Online portals validate both the pixel dimensions AND the file size in bytes. A signature that's 140×60 px but 35 KB will still be rejected. Our tool optimizes both at once.
Frequently asked
What's the standard signature size?+
Most Indian government portals require 140×60 pixels, JPG, under 20 KB.
Can I crop the signature first?+
Yes — preview lets you crop tightly before resizing.
Is my signature uploaded?+
No, never. It's processed locally in your browser.