diff --git a/mayan/apps/converter/backends/python.py b/mayan/apps/converter/backends/python.py
index 5b9cb1d8cf..8d37a4265a 100644
--- a/mayan/apps/converter/backends/python.py
+++ b/mayan/apps/converter/backends/python.py
@@ -27,7 +27,7 @@ try:
 except sh.CommandNotFound:
     pdftoppm = None
 else:
-    pdftoppm = pdftoppm.bake('-png')
+    pdftoppm = pdftoppm.bake('-jpeg')
 
 Image.init()
 logger = logging.getLogger(__name__)