Acrobat User Community Forums

If you are using Acrobat 6 you are out of luck.  Authentication parameters were added to SOAP in Acrobat 7 in the "SOAP.request()" function.  Take a look at this function in the Acrobat JavaScript Reference for version 7 and later. 

   Of course, implementation of authentication in WebServices is not exactly standard.  Implementors have used custom header parameters to do all sorts of things, including non-standard authentication. You should be able to figure out what the service is expecting to see from the WSDL.  The Acrobat SOAP object allows for custom headers in Acrobat 7 and later. And it also allows for a range of encryption options if that is what's needed.  You'll just have to play around with the options until you get what you need.  One way to nail down what Acrobat is doing is to create your own web service on a local server to use as a test frame.