diff -r dea107dce0c4 -r 750eeb7230a1 docutil/docpdf.py
--- a/docutil/docpdf.py	Mon Aug 14 21:31:01 2017 +0300
+++ b/docutil/docpdf.py	Mon Aug 14 22:23:17 2017 +0300
@@ -47,16 +47,16 @@
 
 def open_win_pdf(readerexepath, pdffile, pagenum = None):
     if pagenum != None :
-        os.spawnl(os.P_DETACH, readerexepath, "AcroRd32.exe", "/A", "page=%d=OpenActions" % pagenum, '"%s"'%pdffile)
+        os.spawnl(os.P_DETACH, readerexepath, "AcroRd32.exe", "/A", "page=%d=OpenActions" % pagenum, '"%s"' % pdffile)
     else:
-        os.spawnl(os.P_DETACH, readerexepath, "AcroRd32.exe", '"%s"'%pdffile)
+        os.spawnl(os.P_DETACH, readerexepath, "AcroRd32.exe", '"%s"' % pdffile)
 
 def open_lin_pdf(readerexepath, pdffile, pagenum = None):
     if pagenum == None :
-        os.system("%s -remote DS301 %s &"%(readerexepath, pdffile))
+        os.system("%s -remote DS301 %s &" % (readerexepath, pdffile))
     else:
-        print "Open pdf %s at page %d"%(pdffile, pagenum)
-        os.system("%s -remote DS301 %s %d &"%(readerexepath, pdffile, pagenum))
+        print "Open pdf %s at page %d" % (pdffile, pagenum)
+        os.system("%s -remote DS301 %s %d &" % (readerexepath, pdffile, pagenum))
 
 def open_pdf(pdffile, pagenum = None):
     if wx.Platform == '__WXMSW__' :