Signature Image
This option allows you to print a signature image from the certificate/pix/signatures folder. You can print a graphic representation of a signature, or print a line for a written signature. A sample signature image and a line image are included.
By default, this image is placed in the lower left of the certificate. You can change this placement in your certificate/type/"type name"/certificate.php file.
In that file, find the line of code similar to this one toward the bottom:
print_signature($certificate->printsignature, $orientation, 110, 450, '', '');
The two numbers reflect the X placement (over from the left) and Y placement (down from the top) values for the image. You can change these if you would like.
Keep in mind that adding images to the certificate will increase the size of the pdf file. You can add your own images to the certificate/pix/signatures folder and they will also appear here in the dropdown. The images must be in the JPEG (.jpg) or PNG 8 (.png) format.