Is there any way to make your uploaded signature and initials more legible? When saving it in the required pixels it is very small.

I have played around with the Upload signature and found doing some editing of the signature file helped regarding clarity of the signature. I suppose it depends on the original picture and what you use to resize as well as enhance the image. The dimensions of my signature is 698 x 357 and size is 62KB. I also used an image editor to enhance the sharpness and contrast, which could perhaps help in your case if the issue resides mostly in a fuzzy signature and not just size.