Update wizard-field-upload.hbs

assets/javascripts/wizard/templates/components/wizard-field-upload.hbs

@@ -6,5 +6,5 @@
     {{d-icon "picture-o"}}
   {{/if}}
 
-  <input disabled={{uploading}} type="file" accept="image/*" style="visibility: hidden; position: absolute;" />
+  <input disabled={{uploading}} type="file" accept="image/*,application/pdf" style="visibility: hidden; position: absolute;" />
 </label>