diff --git a/mayan/apps/converter/backends/python.py b/mayan/apps/converter/backends/python.py
index 0b32d82827..e57c653394 100644
--- a/mayan/apps/converter/backends/python.py
+++ b/mayan/apps/converter/backends/python.py
@@ -93,7 +93,7 @@ class Python(ConverterBase):
                 file_object.seek(0)
         else:
             try:
-                image = Image.open(self.file_object)
+                image = Image.open(self.file_object).convert('RGB')
             except IOError as exception:
                 error_message = _('Exception determining PDF page count; %s') % exception
                 logger.error(error_message)
diff --git a/mayan/apps/converter/classes.py b/mayan/apps/converter/classes.py
index 6d282d910e..41b8cb8653 100644
--- a/mayan/apps/converter/classes.py
+++ b/mayan/apps/converter/classes.py
@@ -163,7 +163,7 @@ class ConverterBase(object):
         self.file_object.seek(0)
 
         try:
-            self.image = Image.open(self.file_object)
+            self.image = Image.open(self.file_object).convert('RGB')
         except IOError:
             # Cannot identify image file
             self.image = self.convert(page_number=page_number)