diff -r 750eeb7230a1 -r c02818d7e29f docutil/docpdf.py
--- a/docutil/docpdf.py	Mon Aug 14 22:23:17 2017 +0300
+++ b/docutil/docpdf.py	Mon Aug 14 22:30:41 2017 +0300
@@ -27,7 +27,7 @@
 
 
 readerexepath = None
-    
+
 def get_acroversion():
     " Return version of Adobe Acrobat executable or None"
     import _winreg
@@ -65,7 +65,7 @@
         except:
             wx.MessageBox("Acrobat Reader is not found or installed !")
             return None
-        
+
         readerexepath = os.path.join(readerpath, "AcroRd32.exe")
         if(os.path.isfile(readerexepath)):
             open_win_pdf(readerexepath, pdffile, pagenum)