Resize Signature to 3.5 × 1.5 cm
Create a signature with a physical size of 3.5 × 1.5 cm. Select the required DPI, review the calculated pixels, and crop the handwriting to the correct proportion.
Physical size with a visible DPI calculation
- Uses centimetre inputs with a live pixel conversion.
- Keeps DPI visible because it directly changes the output dimensions.
- Opens a matching crop frame before the final resize.
How to create the correct file
- 1. Upload the signature image.
- 2. Confirm 3.5 cm width, 1.5 cm height and the required DPI.
- 3. Review the calculated pixel output.
- 4. Position the handwriting inside the fixed frame.
- 5. Add an optional maximum such as 20 KB only when the form requires it.
Common reasons for rejection
- Copying a pixel value without matching the DPI.
- Hiding part of the signature outside the crop frame.
- Assuming every 3.5 × 1.5 cm form also requires 20 KB.
- Using a photo-oriented 3.5 × 4.5 cm page by mistake.
Common questions
How many pixels is 3.5×1.5 cm at 200 DPI?
Approximately 276 × 118 pixels after rounding.
Can I create a 20 KB result too?
Yes. Add a 20 KB maximum under More options when the same form requires it.
Why does the pixel result change with DPI?
Centimetres describe physical size; DPI determines how many pixels represent each inch.
Already have a signature file?
Check its exact KB, pixel dimensions, format and aspect ratio before uploading it to the form.
Open Signature Size Checker