I am trying to use Groupdocs.signature 184.108.40.206 in my application, but its giving object reference error. I created one demo application using the example given on the site, which worked fine. but as soon as I add another page in-between[Like Open Signature document page on a button click], the application gives object reference error.
You can find working and non working demo from here.
Please help me to solve this issue. I don’t understand what I am missing out.