# Package com.lowagie.rups.model

- Class Summary
  Class | Description
  --- | ---
  BackgroundTask | Allows you to perform long lasting tasks in background.
  BackgroundTask.ThreadWrapper | Inner class that holds the reference to the thread.
  IndirectObjectFactory | A factory that can produce all the indirect objects in a PDF file.
  ObjectLoader | Loads the necessary iText PDF objects in Background.
  PageLoader | Loads all the PDFPage objects for SUN's PDF Renderer in Background.
  PdfFile | Wrapper for both iText's PdfReader (referring to a PDF file to read) and SUN's PDFFile (referring to the same PDF file to render).
  Permissions | This class can tell you more about the permissions that are allowed on the PDF file.
  ProgressDialog | An informational dialog window showing the progress of a certain action.
  TreeNodeFactory | A factory that creates TreeNode objects corresponding with PDF objects.
  XfaFile | Class that deals with the XFA file that can be inside a PDF file.