Solution : https://service.sap.com/sap/support/notes/689015 (SAP Service marketplace login required)
Key words : 
display arabic texts correctly, smart forms print preview, relevant support package, correction instructions attached, latest sap gui, smart forms, print preview, arabic reason, terms sapscript, solution import
Related Notes : 
       
| 842887 | Enable printing of Arabic-Indic digits | 
| 734790 | Unicode: OTF-Preview shows '#' instead of some letters | 
| 587150 | Support of Arabic-script languages | 
| 96885 | Downloading front end patches |