Almost every exam, bank and government application that wants a photo also wants a signature — as a separate image, within a tiny file-size limit. The good news: a signature is a simple line image, so hitting even a 5KB limit while staying legible is easy if you do it right.
Start with a clean scan
Sign in black ink on plain white paper, then scan or photograph it in good, even light. Crop tightly around the signature so there's little empty space. High contrast (dark ink, white paper) is what lets a signature compress to a few kilobytes without turning grey or broken.
Common limits
- 20KB: the most common signature limit (UPSC, SSC, IBPS, many portals)
- 10KB: stricter forms and some bank applications
- 5KB: a few portals with very tight limits
Resize to the exact limit
Pick the tool that matches your form — Signature Resize to 20KB, to 10KB, or to 5KB — and it fits your signature to a standard ratio on a clean white background and compresses it under the limit. Files are processed privately and never stored.
If your form allows a larger size, use it
A 20KB signature is crisper than a 5KB one. When the form permits a bigger limit, choose it for a clearer result — only drop to 5KB when the portal genuinely requires it.