I am working on the requirement for Nintex forms. In this requirement i am creating a form in which user will be allowed to upload the document. This form will be linked to the list. Later i need to copy the documents into different document library. (I can copy document to document library using Workflow.) Additionally on the form where the user will upload the document, he would be able to see all the previous documents if any submitted for that list item. For this i was thinking to use page viewer control and display content of document library. I will be passing inputs to pageviewer control. Now the problem is that page viewer control is not displaying any data. (This content cannot be displayed).