fixes black background on transparent image jpeg previews

algoo · Feb 20, 2018 · 7fa6fd5 · 7fa6fd5
1 parent c86cce8
commit 7fa6fd5
Showing 1 changed file with 3 additions and 3 deletions.
diff --git a/preview_generator/preview/builder/image__wand.py b/preview_generator/preview/builder/image__wand.py
@@ -18,11 +18,11 @@ def convert_pdf_to_jpeg(
         preview_size: ImgDims
 ) -> BytesIO:
     with WImage(file=pdf) as img:
-        img.background_color = Color('white')
         # HACK - D.A. - 2017-08-01
-        # The following line avoid black background in case of transparent
+        # The following 2 lines avoid black background in case of transparent
         # objects found on the page. As we save to JPEG, this is not a problem
-        img.alpha_channel = False
+        img.background_color = Color('white')
+        img.alpha_channel = 'remove'
 
         resize_dims = compute_resize_dims(
             ImgDims(img.width, img.height),