diff --git a/src/calibre/ebooks/pdf/render/graphics.py b/src/calibre/ebooks/pdf/render/graphics.py
index 53739e9cfc..9955a328aa 100644
--- a/src/calibre/ebooks/pdf/render/graphics.py
+++ b/src/calibre/ebooks/pdf/render/graphics.py
@@ -44,6 +44,7 @@ def convert_path(path):  # {{{
     return p
 # }}}
 
+
 Brush = namedtuple('Brush', 'origin brush color')
 
 
@@ -430,9 +431,12 @@ class Graphics(object):
         pdf.current_page.write('%d j '%join)
 
         # Dash pattern
-        ps = {Qt.DashLine:[3], Qt.DotLine:[1,2], Qt.DashDotLine:[3,2,1,2],
-              Qt.DashDotDotLine:[3, 2, 1, 2, 1, 2]}.get(pen.style(), [])
-        if ps:
+        if pen.style() == Qt.CustomDashLine:
+            pdf.serialize(Array(pen.dashPattern()))
+            pdf.current_page.write(' %d d ' % pen.dashOffset())
+        else:
+            ps = {Qt.DashLine:[3], Qt.DotLine:[1,2], Qt.DashDotLine:[3,2,1,2],
+                  Qt.DashDotDotLine:[3, 2, 1, 2, 1, 2]}.get(pen.style(), [])
             pdf.serialize(Array(ps))
             pdf.current_page.write(' 0 d ')
 
@@ -482,5 +486,3 @@ class Graphics(object):
             pat = TexturePattern(None, matrix, self.pdf, clone=self.last_fill.brush)
             pattern = self.pdf.add_pattern(pat)
             self.pdf.apply_fill(self.last_fill.color, pattern)
-
-