Nope.
This is what comes up:
"The image dimensions are too large! Please make sure that the width is less than 500 pixels and the height less than 200 pixels - MAXIMUM!
Please reduce the size by using a program such as IrfanView."
And again:
"The file you uploaded is too large!
The maximum allowed file size for a signature is 30KB (30720 bytes).
Please make sure your file does not exceed this limit, then try again."