| ArrayEntry | This is a simple class that will contain an index and a value. | code | html |
| MapEntry | This is a simple class that will contain a key and a value. | code | html |
| PDFPagePanel | This is a simple JPanel that can be used to display a PDF page. | code | html |
| PDFTreeCellRenderer | A class to render tree cells for the pdfviewer. | code | html |
| PDFTreeModel | A class to model a PDF document as a tree structure. | code | html |
| PageDrawer | This will paint a page in a PDF document to a graphics context. | code | html |
| PageWrapper | A class to handle some prettyness around a single PDF page. | code | html |
| ReaderBottomPanel | A panel to display at the bottom of the window for status and other stuff. | code | html |