The approval workflow phase is an optional phase in the workflow designed to allow assigned users to review and approve the document before it is signed off. 

Settings and file-attachments management

• permit or prohibit file-template replacement;
• permit of prohibit file-attachment downloading; 
• set the file opening mode to: 
  • online editing;
  • online editing (in review mode only);
  • online preview (with external online editor);
  • PDF (document conversion to PDF);
  • preview as image (page by page);
  • browser native support;
  • deactivated.