Integrate the Crop2Size Plugin

# Open the FCKeditor/fckconfig.js file in a text editor.
# Add the following line to the fckconfig.js file:
   FCKConfig.Plugins.Add( 'crop2size' );
# Add Crop2Size™ to your current ToolbarSet by inserting 'crop2size' into the toolbar. See the FCKeditor documentation at http://wiki.FCKeditor.net/Developer's_Guide/Configuration/Toolbar for more details. 

FCKConfig.Plugins.Add('crop2size');

FCKConfig.ToolbarSets["Basic_Ext1"] = [
   ['Source', '-', 'Bold','Italic','Underline','-','TextColor','BGColor','-','Image','-','Link','Unlink','-','OrderedList','UnorderedList','-', 'FitWindow', '-', 'Crop2Size', '-', 'About']
] ;