Add a note that alpha PNGs use lots of RAM (ref prawnpdf#324)

luis-ca · Mar 5, 2012 · a5fbc76 · a5fbc76
1 parent f5635ea
commit a5fbc76
Showing 1 changed file with 3 additions and 2 deletions.
diff --git a/lib/prawn/images.rb b/lib/prawn/images.rb
@@ -14,8 +14,9 @@ module Images
     # Add the image at filename to the current page. Currently only
     # JPG and PNG files are supported.
     #
-    # NOTE: Prawn is very slow at rendering PNGs with alpha channels.  The
-    # workaround for those who don't mind installing RMagick is to use:
+    # NOTE: Prawn is very slow at rendering PNGs with alpha channels, and this
+    # uses a lot of RAM. The workaround for those who don't mind installing
+    # RMagick is to use:
     #
     # http://github.com/amberbit/prawn-fast-png
     #