Are there any solutions for handling digital signatures on SAIL forms? Our curre

Neither of the solutions in the linked thread work for us, but we are developing the following solution:
1) Using Adobe LiveCycle we are building a web service that will receive signed and submitted PDFs, verify them, and send them to Appian.
2) We are using Adobe Reader Extensions to add signable digital signature fields to our PDF templates, and will also be adding a submit button to invoke the web service.
3) Appian will give a link to open the PDF, and will have a recurring check (we're using the database) for when the document is retrievable by Appian.

If anyone has any better solutions for digitally signing, where the certificate cannot be on the server, let me know.

Neither of the solutions in the linked thread work for us, but we are developing the following solution:
1) Using Adobe LiveCycle we are building a web service that will receive signed and submitted PDFs, verify them, and send them to Appian.
2) We are using Adobe Reader Extensions to add signable digital signature fields to our PDF templates, and will also be adding a submit button to invoke the web service.
3) Appian will give a link to open the PDF, and will have a recurring check (we're using the database) for when the document is retrievable by Appian.

If anyone has any better solutions for digitally signing, where the certificate cannot be on the server, let me know.