-
-        sizer.Add(self.pdf, proportion=1, flag=wx.EXPAND)
-
-        btn = wx.Button(self, wx.NewId(), "Open PDF File")
-        self.Bind(wx.EVT_BUTTON, self.OnOpenButton, btn)
-        btnSizer.Add(btn, proportion=1, flag=wx.EXPAND|wx.ALL, border=5)
-
-        btn = wx.Button(self, wx.NewId(), "<-- Previous Page")
-        self.Bind(wx.EVT_BUTTON, self.OnPrevPageButton, btn)
-        btnSizer.Add(btn, proportion=1, flag=wx.EXPAND|wx.ALL, border=5)
-
-        btn = wx.Button(self, wx.NewId(), "Next Page -->")
-        self.Bind(wx.EVT_BUTTON, self.OnNextPageButton, btn)
-        btnSizer.Add(btn, proportion=1, flag=wx.EXPAND|wx.ALL, border=5)
-
-
-        btnSizer.Add((50,-1), proportion=2, flag=wx.EXPAND)
-        sizer.Add(btnSizer, proportion=0, flag=wx.EXPAND)
-
-        self.SetSizer(sizer)
+        leftsizer.Add(self.pdf, proportion=1, flag=wx.EXPAND)
+
+        box = wx.StaticBox(self, wx.NewId(), "" )
+        buttonsizer = wx.StaticBoxSizer(box, wx.HORIZONTAL )
+    
+        b1 = wx.Button(self, wx.NewId(), "First")
+        buttonsizer.Add(b1, proportion=0, flag=wx.ALIGN_CENTER|wx.ALL, border=5)
+        self.Bind(wx.EVT_BUTTON, self.OnFirstPageButton, b1)
+
+        b2 = wx.Button(self,  wx.NewId(), "Previous")
+        buttonsizer.Add(b2, proportion=0, flag=wx.ALIGN_CENTER|wx.ALL, border=5)
+        self.Bind(wx.EVT_BUTTON, self.OnPreviousPageButton, b2)
+        
+        tx1 = wx.StaticText(self, wx.NewId(), "   Go to page" )
+        buttonsizer.Add(tx1, proportion=0, flag=wx.ALIGN_CENTER|wx.ALL, border=5)
+        tc1 = wx.TextCtrl(self, wx.NewId(), "0", size=[30,-1])
+        buttonsizer.Add( tc1, proportion=0, flag=wx.ALIGN_CENTER|wx.ALL, border=5)
+        self.Bind(wx.EVT_TEXT, self.OnGotoPage, tc1)
+    
+        b3 = wx.Button(self, wx.NewId(), "Next")
+        buttonsizer.Add(b3, proportion=0, flag=wx.ALIGN_CENTER|wx.ALL, border=5)
+        self.Bind(wx.EVT_BUTTON, self.OnNextPageButton, b3)
+
+        b4 = wx.Button(self, wx.NewId(), "Last")
+        buttonsizer.Add(b4, proportion=0, flag=wx.ALIGN_CENTER|wx.ALL, border=5)
+        self.Bind(wx.EVT_BUTTON, self.OnLastPageButton, b4)
+
+        tx2 = wx.StaticText(self, wx.NewId(), "     Zoom")
+        buttonsizer.Add(tx2, proportion=0, flag=wx.ALIGN_CENTER|wx.ALL, border=5)
+ 
+        ch1 = wx.Choice(self, wx.NewId(),
+                        choices=["Default", "Fit", "FitH", "FitV",
+                                 "25%", "50%", "75%", "100%", "125%", "200%", "400%"])
+        ch1.SetSelection(0)
+        buttonsizer.Add(ch1, proportion=0, flag=wx.ALIGN_CENTER|wx.ALL, border=5)
+        self.Bind(wx.EVT_CHOICE, self.OnZoom, ch1)
+
+        leftsizer.Add(buttonsizer, proportion=0)
+        mainsizer.Add(leftsizer, proportion=1, flag=wx.GROW|wx.ALIGN_CENTER_HORIZONTAL|wx.ALL, border=5)
+
+        box = wx.StaticBox(self, wx.NewId(), "" )
+        rightsizer = wx.StaticBoxSizer(box, wx.VERTICAL)
+    
+        b5 = wx.Button(self, wx.NewId(), "Load PDF")
+        rightsizer.Add(b5, proportion=0, flag=wx.ALIGN_CENTER_VERTICAL|wx.ALL, border=5)
+        self.Bind(wx.EVT_BUTTON, self.OnLoadButton, b5)
+
+        b6 = wx.Button(self, wx.NewId(), "Print")
+        rightsizer.Add(b6, proportion=0, flag=wx.ALIGN_CENTER_VERTICAL|wx.ALL, border=5)
+        self.Bind(wx.EVT_BUTTON, self.OnPrintButton, b6)
+
+        tx3 = wx.StaticText(self, wx.NewId(), "Page mode:")
+        rightsizer.Add(tx3, proportion=0, flag=wx.ALIGN_CENTER_VERTICAL|wx.ALL, border=5)
+
+        ch2 = wx.Choice(self, wx.NewId(),size=[100,-1],
+                        choices=["None", "Bookmarks", "Thumbs"])
+        ch2.SetSelection(0)
+        rightsizer.Add(ch2, proportion=0, flag=wx.ALIGN_CENTER_VERTICAL|wx.ALL, border=5)
+        self.Bind(wx.EVT_CHOICE, self.OnPageMode, ch2)
+
+        tx4 = wx.StaticText(self, wx.NewId(), "Layout mode:")
+        rightsizer.Add(tx4, proportion=0, flag=wx.ALIGN_CENTER_VERTICAL|wx.ALL, border=5)
+
+        ch3 = wx.Choice(self, wx.NewId(),size=[100,-1],
+                        choices=["DontCare", "SinglePage",
+                                 "OneColumn", "TwoColumnLeft", "TwoColumnRight" ])
+        ch3.SetSelection(0)
+        rightsizer.Add(ch3, proportion=0, flag=wx.ALIGN_CENTER_VERTICAL|wx.ALL, border=5)
+        self.Bind(wx.EVT_CHOICE, self.OnLayoutMode, ch3)
+
+        cx1 = wx.CheckBox(self, wx.NewId(), "Toolbar")
+        cx1.SetValue( True )
+        rightsizer.Add( cx1,proportion=0, flag=wx.ALIGN_CENTER_VERTICAL|wx.ALL, border=5)
+        self.Bind(wx.EVT_CHECKBOX, self.OnToolbar, cx1)
+
+        cx2 = wx.CheckBox(self, wx.NewId(), "Scrollbars")
+        cx2.SetValue( True )
+        rightsizer.Add( cx2,proportion=0, flag=wx.ALIGN_CENTER_VERTICAL|wx.ALL, border=5)
+        self.Bind(wx.EVT_CHECKBOX, self.OnScrollbars, cx2)
+
+        mainsizer.Add( rightsizer, proportion=0, flag=wx.ALL, border=15)
+        self.SetSizer(mainsizer)