Draw signature online
Draw with a finger, mouse or stylus and save a file cropped to your ink.
Pixel size appears once you draw.
Drawing on a phone
The page does not scroll while your finger is on the pad, so you can draw freely; touch anywhere outside the pad to scroll again. A stylus gives the most control. With a finger, turn the phone sideways for a wider pad and write a little larger than you would on paper, because the file is cropped to the ink afterwards.
Pen width, ink and undo
Thin is 2.5 pixels, medium 4.5 and thick 7.5. Medium suits most files. Pick thick if the signature will later shrink into a small box, since thin lines can vanish when resized. Black is the standard choice, while blue looks like a pen on paper. Undo removes the last stroke. With a pen, pressure changes the line width; a finger or mouse keeps the width you chose. The Smoothing slider evens out a shaky line further.
Saving the drawing
PNG keeps the background transparent, JPG puts the signature on white, and SVG saves the strokes as a scalable drawing. All three are cropped tightly, and Copy image puts the PNG on the clipboard where the browser allows it. File size sets how many pixels the PNG and JPG have. If a form asks for a particular size or a limit such as 20 KB, finish in the signature resizer.