diff --git a/PIL/Image.py b/PIL/Image.py
index e0e458057..1fb959a69 100644
--- a/PIL/Image.py
+++ b/PIL/Image.py
@@ -577,7 +577,7 @@ class Image(object):
         self.pyaccess = None
         self.readonly = 0
 
-    def _dump(self, file=None, format=None):
+    def _dump(self, file=None, format=None, **options):
         import tempfile
         suffix = ''
         if format:
@@ -588,11 +588,11 @@ class Image(object):
 
         self.load()
         if not format or format == "PPM":
-            self.im.save_ppm(file)
+            self.im.save_ppm(file, **options)
         else:
             if not file.endswith(format):
                 file = file + "." + format
-            self.save(file, format, compress_level=1)
+            self.save(file, format, **options)
         return file
 
     def __eq__(self, other):
diff --git a/PIL/ImageShow.py b/PIL/ImageShow.py
index 23e0126a7..6ea574d73 100644
--- a/PIL/ImageShow.py
+++ b/PIL/ImageShow.py
@@ -87,7 +87,7 @@ class Viewer(object):
 
     def save_image(self, image):
         """Save to temporary file, and return filename"""
-        return image._dump(format=self.get_format(image))
+        return image._dump(format=self.get_format(image), compress_level=1)
 
     def show_image(self, image, **options):
         """Display given image"""