title: Using DocuSign API, how do I apply base64 encrypted string to template?
body: <p>I am able to create a composite envelope and generate an embedded sending URL. Envelope consists of a mix of templates and PDFs (base64 strings) that are dynamically generated via Microsoft Reporting Services. New requirement is to exclude some PDFs from external users.  I would like to apply these PDFs to templates, so that template builders can control visibility. This can be done manually by selecting PDF in sender view, selecting ellipsis then Apply Templates. Can this be done using DocuSign API, or is my only option to assign values to excludedDocuments at the signer level?</p>