Pass --encoding utf8 to wkhtmltopdf to render Unicode characters to PDF.

Since we PDFTemplateResponse renders templates, and Django uses UTF-8
to do the rendering, we can safely assume that the result is in
UTF-8.

2 files changed, 4 insertions, 1 deletions

diff --git a/docs/settings.rst b/docs/settings.rst
index 7b5116a..63b1116 100644
--- a/docs/settings.rst
+++ b/docs/settings.rst
@@ -21,7 +21,7 @@ this app will look for the binary using the default OS paths.
 WKHTMLTOPDF_CMD_OPTIONS
 ~~~~~~~~~~~~~~~~~~~~~~~
 
-Default: ``{'quiet': True}``
+Default: ``{'encoding': 'utf8', 'quiet': True}``
 
 A dictionary of command-line arguments to pass to the ``wkhtmltopdf``
 binary.
diff --git a/wkhtmltopdf/utils.py b/wkhtmltopdf/utils.py
index 99998a2..8e0caef 100644
--- a/wkhtmltopdf/utils.py
+++ b/wkhtmltopdf/utils.py
@@ -71,6 +71,9 @@ def wkhtmltopdf(pages, output=None, **kwargs):
         options = copy(options)
     options.update(kwargs)
 
+    # Force --encoding utf8 unless the user has explicitly overridden this.
+    options.setdefault('encoding', 'utf8')
+
     env = getattr(settings, 'WKHTMLTOPDF_ENV', None)
     if env is not None:
         env = dict(os.environ, **env)