Devdocs8417 (#85)

* Update EG006EnvelopeDocs.php

* Update eg007_envelope_get_doc.html

Author: AaronWDS

src/Controllers/Examples/eSignature/EG006EnvelopeDocs.php

@@ -47,7 +47,8 @@ public function createController(): void
                 # they can be used in example 7 (download a document)
                 $standard_doc_items = [
                     ['name' => 'Combined', 'type' => 'content', 'document_id' => 'combined'],
-                    ['name' => 'Zip archive', 'type' => 'zip', 'document_id' => 'archive']
+                    ['name' => 'Zip archive', 'type' => 'zip', 'document_id' => 'archive'],
+                    ['name' => 'PDF Portfolio', 'type' => 'content', 'document_id' => 'portfolio']
                 ];
                 # The certificate of completion is named "summary".
                 # We give it a better name below.

templates/esignature/eg007_envelope_get_doc.html

@@ -8,6 +8,10 @@ <h4>7. Download a document from an envelope</h4>
         certificate</li>
     <li><b>Zip Archive</b>: a ZIP archive that contains all of the PDF documents,
         the certificate, and any .WAV files used for voice authentication.</li>
+    <li>
+        <b>PDF Portfolio</b>: Retrieves the envelope documents as a <a
+            href="https://helpx.adobe.com/acrobat/using/overview-pdf-portfolios.html">PDF portfolio</a>
+    </li>
     <li>The envelope's individual documents</li>
     <li>The envelope's Certificate of Completion</li>
 </ul>