Free tool · Signature upload

Signature Resizer for Online Forms

Photograph your signature on white paper; ExamDetail’s Signature Resizer crops it to the ink, whitens the background and saves it at the size and KB your form asks for.

How to use it

  1. Sign on plain white paper. Use a black or blue pen and leave space around the signature.
  2. Photograph or scan it. Upload the picture; the tool crops it to the ink.
  3. Clean and size it. “Clean background” turns the paper pure white and darkens the ink. Pick a common size or enter your form’s pixels/cm and KB range.
  4. Download and upload. The cleaned, cropped signature is ready for the form.

Signature sizes by exam

Dimensions and KB from ExamDetail’s signature presets. Check the notice for your recruitment year before uploading.

ExamDimensionsFile size
SSC (CGL, CHSL, MTS, GD…)About 6.0 × 2.0 cm10–20 KB
IBPS, SBI, RBI, NICL140 × 60 px (preferred)10–20 KB
UPSC exams350–500 px20–100 KB
UP Police Constable50 × 20 mm or 140 × 60 px30–50 KB
CTET3.5 × 1.5 cm3–30 KB
GATE250 × 80 px to 580 × 180 px3–300 KB
IIT JAM80 × 280 px to 160 × 560 px50–150 KB
NATA3.5 cm wide × 1.5 cm high1–30 KB
CA Foundation / Inter / FinalFits 6 × 2 cm10–20 KB

Size rules change between recruitment years. Before uploading, confirm the limits in the official notice or information bulletin for your exam.

Good to know

  • Some forms ask for a specific ink colour (NIMCET accepts royal blue or black only). Check your form’s rules before changing the ink colour.

Signature Resizer is a free tool by ExamDetail. It is not a government service; acceptance of uploaded files is decided by the exam conducting body.

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