How to resize signature for online forms
Crop your signature photo tightly around the ink.
The size is set to 18 KB in JPG, safely under a 20 KB limit.
Press Compress and upload the JPG to your form.
Bring a photographed signature down to the 10–20 KB that exam and job forms ask for.
Recruitment and exam portals commonly want a JPG signature of 10–20 KB, often around 140 × 60 pixels or with a similar wide shape.
Sign with a black or dark blue pen on plain white paper, photograph it in daylight, then crop tightly around the ink before compressing.
Crop your signature photo tightly around the ink.
The size is set to 18 KB in JPG, safely under a 20 KB limit.
Press Compress and upload the JPG to your form.
Resize to those pixels first (for example width 140, height 60, Stretch ticked), then compress here.
Photos in dim light have grey paper. Use the Photo editor to raise brightness and contrast first.