Index: vendor/plugins/rfpdf/lib/rfpdf/korean.rb
===================================================================
--- vendor/plugins/rfpdf/lib/rfpdf/korean.rb	(revision 2761)
+++ vendor/plugins/rfpdf/lib/rfpdf/korean.rb	(working copy)
@@ -138,15 +138,17 @@
   			b='LRT'
   			b2='LR'
   		else
-  			b2=''
-  			if(border.index('L').nil?)
-  				b2+='L'
-        end
-  			if(border.index('R').nil?)
-  				b2+='R'
-        end
-  			b=border.index('T').nil? ? b2+'T' : b2
-  		end
+			if border.respond_to?:index
+				b2=''
+				if(border.index('L').nil?)
+					b2+='L'
+				end
+				if(border.index('R').nil?)
+					b2+='R'
+				end
+				b=border.index('T').nil? ? b2+'T' : b2
+			end
+		end
   	end
   	sep=-1
   	i=0
@@ -202,7 +204,7 @@
       end
   	end
   	#Last chunk
-  	if(border and not border.index('B').nil?)
+  	if(border and border.respond_to?(:index) and not border.index('B').nil?)
   		b+='B'
     end
   	Cell(w,h,s[j,i-j],b,2,align,fill)
Index: lib/redmine/export/pdf.rb
===================================================================
--- lib/redmine/export/pdf.rb	(revision 2761)
+++ lib/redmine/export/pdf.rb	(working copy)
@@ -33,6 +33,11 @@
           super()
           set_language_if_valid lang
           case current_language.to_s.downcase
+          when 'ko'
+            extend(PDF_Korean)
+            AddUHCFont()
+            @font_for_content = 'UHC'
+            @font_for_footer = 'UHC'
           when 'ja'
             extend(PDF_Japanese)
             AddSJISFont()