Index: app/helpers/ifpdf_helper.rb
===================================================================
--- app/helpers/ifpdf_helper.rb	(revision 1421)
+++ app/helpers/ifpdf_helper.rb	(working copy)
@@ -55,6 +55,30 @@
       SetFont(@font_for_content, style, size)
     end
       
+    def SetTitle(txt)
+      case current_language.to_s
+      when 'ja', 'zh', 'zh-tw'
+        txt = begin
+          utf16txt = Iconv.conv('UTF-16BE', 'UTF-8', txt)
+          hextxt = "<FEFF"  # FEFF is BOM
+          hextxt << utf16txt.unpack("C*").map {|x| sprintf("%02X",x) }.join
+          hextxt << ">"
+        rescue
+          txt
+        end || ''
+      end
+      super(txt)
+    end
+
+    def textstring(s)
+      # Format a text string
+      if s =~ /^</  # This means the string is hex-dumped.
+        return s
+      else
+        return '('+escape(s)+')'
+      end
+    end
+
     def Cell(w,h=0,txt='',border=0,ln=0,align='',fill=0,link='')
       @ic ||= Iconv.new(l(:general_pdf_encoding), 'UTF-8')
       # these quotation marks are not correctly rendered in the pdf