Index: lib/redmine/export/pdf.rb
===================================================================
--- lib/redmine/export/pdf.rb	(revision 12012)
+++ lib/redmine/export/pdf.rb	(working copy)
@@ -524,6 +524,16 @@
         pdf.Line(top_x, lower_y, col_x, lower_y)  # bottom border
       end
 
+	  # Render issue header
+      def issue_to_pdf_write_header(pdf, style, w, h, value, base_y, max_height)
+        col_x = pdf.GetX
+        pdf.SetFontStyle(style,9)
+        pdf.RDMMultiCell(w, h, value, 0, '', 0, 1)
+        max_height = (pdf.GetY - base_y) if (pdf.GetY - base_y) > max_height
+        pdf.SetXY(col_x + w, base_y)	
+        return max_height
+      end
+
       # Returns a PDF string of a single issue
       def issue_to_pdf(issue, assoc={})
         pdf = ITCPDF.new(current_language)
@@ -577,20 +587,38 @@
         end
 
         rows = left.size > right.size ? left.size : right.size
+
+        label_width = 36
+        value_width = 59
+        row_height  = 5
+
+        top_x = pdf.GetX
+        top_y = pdf.GetY
+		
         rows.times do |i|
+          base_y = pdf.GetY
+          max_height = row_height
+
           item = left[i]
-          pdf.SetFontStyle('B',9)
-          pdf.RDMCell(35,5, item ? "#{item.first}:" : "", i == 0 ? "LT" : "L")
-          pdf.SetFontStyle('',9)
-          pdf.RDMCell(60,5, item ? item.last.to_s : "", i == 0 ? "RT" : "R")
+          max_height = issue_to_pdf_write_header(pdf, 'B', label_width, row_height, item ? "#{item.first}:" : "", base_y, max_height)
+          max_height = issue_to_pdf_write_header(pdf, '',  value_width, row_height, item ? item.last.to_s : "", base_y, max_height)
 
           item = right[i]
-          pdf.SetFontStyle('B',9)
-          pdf.RDMCell(35,5, item ? "#{item.first}:" : "", i == 0 ? "LT" : "L")
-          pdf.SetFontStyle('',9)
-          pdf.RDMCell(60,5, item ? item.last.to_s : "", i == 0 ? "RT" : "R")
-          pdf.Ln
+          max_height = issue_to_pdf_write_header(pdf, 'B', label_width, row_height, item ? "#{item.first}:" : "", base_y, max_height)
+          max_height = issue_to_pdf_write_header(pdf, '',  value_width, row_height, item ? item.last.to_s : "", base_y, max_height)
+
+          pdf.SetY(base_y + max_height)
         end
+        
+        w_half   = label_width + value_width
+        w        = w_half * 2
+        lower_y  = pdf.GetY
+
+        # Draw header border
+        pdf.Line(top_x,           top_y, top_x + w,      top_y) 
+        pdf.Line(top_x,           top_y, top_x,          lower_y)
+        pdf.Line(top_x + w_half,  top_y, top_x + w_half, lower_y)
+        pdf.Line(top_x + w,       top_y, top_x + w,      lower_y)
 
         pdf.SetFontStyle('B',9)
         pdf.RDMCell(35+155, 5, l(:field_description), "LRT", 1)