Configuring Right-to-Left Languages 
In the standard settings for the portal, stylesheets are not automatically generated for right-to-left (RTL) languages when you create themes. This is because creating stylesheets for both left-to-right (LTR) and RTL languages is a time-consuming process. You should only set RTL stylesheet generation if it is absolutely necessary.
In SAP NetWeaver Administrator, choose .
In the Module List section, select the com.sap.portal.themes.designservice application.
In Web Module Details, in the Components tab, select the design service.
In the Full Details area, change the value of the com.sapportals.portal.design.textDirection property to the following:
LTR,RTL
In the Web Module Details section, click Save.
When you create a theme, both the LTR and RTL stylesheets are now generated.