Return a proper bytestring

diff --git a/drafthorse/pdf.py b/drafthorse/pdf.py
index df18cf68bbe9f3db8b322ac294589c666b128df7..4006492261aba464362955094ce0a98926f0b16f 100644 (file)
--- a/drafthorse/pdf.py
+++ b/drafthorse/pdf.py
@@ -61,7 +61,7 @@ def attach_xml(original_pdf, xml_data, level='BASIC'):
     outbuffer = BytesIO()
     output.write(outbuffer)
     outbuffer.seek(0)
-    return outbuffer
+    return outbuffer.read()
 
 
 def _get_original_output_intents(original_pdf):