From 423e0617196577f48d825a3a6033212d13787e28 Mon Sep 17 00:00:00 2001
From: Kovid Goyal <kovid@kovidgoyal.net>
Date: Fri, 19 Apr 2019 17:38:23 +0530
Subject: [PATCH] Fix a regression that broke PDF output

---
 src/calibre/ebooks/pdf/render/fonts.py | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/calibre/ebooks/pdf/render/fonts.py b/src/calibre/ebooks/pdf/render/fonts.py
index d8e8515246..ec0c4dcbd6 100644
--- a/src/calibre/ebooks/pdf/render/fonts.py
+++ b/src/calibre/ebooks/pdf/render/fonts.py
@@ -62,10 +62,10 @@ class FontStream(Stream):
 
 
 def to_hex_string(c):
-    ans = hex(int(c))[2:].rjust(4, '0')
+    ans = hex(int(c))[2:]
     if isinstance(ans, bytes):
         ans = ans.decode('ascii')
-    return ans
+    return ans.rjust(4, '0')
 
 
 class CMap(Stream):