Have you tried Ultra Signatures? This is a free tool, but has all the features that you find in a professional version. With Ultra Signatures you can quickly convert a PDF or Word document into gather electronic signatures, and share this document also. This has other features also, like Document Management, document merging, Workflow process, Custom Forms, the nice thing is it has a free version with all these features but there is a limit on how many documents you can use in a month.
Were you able to find any solution for this ?
Thanks,
Surabhi Menon