1 files changed, 8 insertions, 2 deletions
diff --git a/pydyf/__init__.py b/pydyf/__init__.py
index 4ad0bde..05dccf6 100755
--- a/pydyf/__init__.py
+++ b/pydyf/__init__.py
@@ -3,10 +3,11 @@ A low-level PDF generator.
 
 """
 
+import re
 import zlib
 from codecs import BOM_UTF16_BE
 
-VERSION = __version__ = '0.1.1'
+VERSION = __version__ = '0.1.2'
 
 
 def _to_bytes(item):
@@ -375,7 +376,12 @@ class String(Object):
     @property
     def data(self):
         try:
-            return b'(' + _to_bytes(self.string) + b')'
+            # "A literal string is written as an arbitrary number of characters
+            # enclosed in parentheses. Any characters may appear in a string
+            # except unbalanced parentheses and the backslash, which must be
+            # treated specially."
+            escaped = re.sub(rb'([\\\(\)])', rb'\\\1', _to_bytes(self.string))
+            return b'(' + escaped + b')'
         except UnicodeEncodeError:
             encoded = BOM_UTF16_BE + str(self.string).encode('utf-16-be')
             return b'<' + encoded.hex().encode() + b'>'