I would like to remind you that the maximum allowed size for a signature image is 400x120 pixels (please use JPG and GIF only, no PNG). Itīs ok if itīs a bit wider or a higher than that. The signature, including text, should not exceed a height of 150 pixels. Smaller signatures = less scrolling and faster loading times.
This is a 400x120 image:
A signature, including text, shouldnīt be higher than this (150 pixels):