class SelectedPages extends AbstractTool {

    static {
        addVersion("$Id: SelectedPages.java 3271 2008-04-18 20:39:42Z xlv $");
    }

    /**
     * Constructs a SelectedPages object.
     */
    public SelectedPages() {
        menuoptions = MENU_EXECUTE | MENU_EXECUTE_SHOW;
        arguments.add(new FileArgument(this, "srcfile", "The file you want to split", false, new PdfFilter()));
        arguments.add(new FileArgument(this, "destfile",
                "The file to which the first part of the original PDF has to be written", true, new PdfFilter()));
        arguments.add(new StringArgument(this, "selection", "A selection of pages (see Help for more info)"));
    }

    /**
     * Generates a PDF file with selected pages from an existing PDF.
     *
     * @param args String[]
     */
    public static void main(String[] args) {
        SelectedPages tool = new SelectedPages();
        if (args.length < 4) {
            System.err.println(tool.getUsage());
        }
        tool.setMainArguments(args);
        tool.execute();
    }

    /**
     * @see com.lowagie.toolbox.AbstractTool#createFrame()
     */
    protected void createFrame() {<FILL_FUNCTION_BODY>}

    /**
     * @see com.lowagie.toolbox.AbstractTool#execute()
     */
    public void execute() {
        try {
            if (getValue("srcfile") == null) {
                throw new InstantiationException("You need to choose a sourcefile");
            }
            File src = (File) getValue("srcfile");
            if (getValue("destfile") == null) {
                throw new InstantiationException("You need to choose a destination file for the first part of the PDF");
            }
            File dest = (File) getValue("destfile");
            String selection = (String) getValue("selection");

            // we create a reader for a certain document
            PdfReader reader = new PdfReader(src.getAbsolutePath());
            System.out.println("The original file had " + reader.getNumberOfPages() + " pages.");
            reader.selectPages(selection);
            int pages = reader.getNumberOfPages();
            System.err.println("The new file has " + pages + " pages.");
            Document document = new Document(reader.getPageSizeWithRotation(1));
            PdfCopy copy = new PdfCopy(document, new FileOutputStream(dest.getAbsolutePath()));
            document.open();
            PdfImportedPage page;
            for (int i = 0; i < pages; ) {
                ++i;
                System.out.println("Processed page " + i);
                page = copy.getImportedPage(reader, i);
                copy.addPage(page);
            }
            PRAcroForm form = reader.getAcroForm();
            if (form != null) {
                copy.copyAcroForm(reader);
            }
            document.close();
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

    /**
     * @param arg StringArgument
     * @see com.lowagie.toolbox.AbstractTool#valueHasChanged(com.lowagie.toolbox.arguments.AbstractArgument)
     */
    public void valueHasChanged(AbstractArgument arg) {
        if (internalFrame == null) {
            // if the internal frame is null, the tool was called from the command line
            return;
        }
        // represent the changes of the argument in the internal frame
    }

    /**
     * @return File
     * @throws InstantiationException on error
     * @see com.lowagie.toolbox.AbstractTool#getDestPathPDF()
     */
    protected File getDestPathPDF() throws InstantiationException {
        return (File) getValue("destfile");
    }
}

        internalFrame = new JInternalFrame("SelectedPages", true, false, true);
        internalFrame.setSize(300, 80);
        internalFrame.setJMenuBar(getMenubar());
        System.out.println("=== SelectedPages OPENED ===");
    
<methods>public void <init>() ,public void actionPerformed(java.awt.event.ActionEvent) ,public abstract void execute() ,public ArrayList<com.lowagie.toolbox.arguments.AbstractArgument> getArguments() ,public javax.swing.JInternalFrame getInternalFrame() ,public javax.swing.JMenuBar getMenubar() ,public java.lang.String getUsage() ,public java.lang.Object getValue(java.lang.String) throws java.lang.InstantiationException,public void setArguments(ArrayList<com.lowagie.toolbox.arguments.AbstractArgument>) ,public void setInternalFrame(javax.swing.JInternalFrame) ,public void setMainArguments(java.lang.String[]) ,public void setMenubar(javax.swing.JMenuBar) ,public abstract void valueHasChanged(com.lowagie.toolbox.arguments.AbstractArgument) <variables>public static final int MENU_EXECUTE,public static final int MENU_EXECUTE_PRINT,public static final int MENU_EXECUTE_PRINT_SILENT,public static final int MENU_EXECUTE_SHOW,protected ArrayList<com.lowagie.toolbox.arguments.AbstractArgument> arguments,private java.awt.Desktop awtdesktop,protected javax.swing.JInternalFrame internalFrame,private javax.swing.JMenuBar menubar,protected int menuoptions,public static ArrayList<java.lang.String> versionsarray