From a5fbc765dad68753f7b58a91a374a7825c0f88c8 Mon Sep 17 00:00:00 2001
From: Brad Ediger <brad.ediger@madriska.com>
Date: Mon, 5 Mar 2012 12:30:04 -0600
Subject: [PATCH] Add a note that alpha PNGs use lots of RAM (ref #324)

---
 lib/prawn/images.rb | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/lib/prawn/images.rb b/lib/prawn/images.rb
index 53637f4b6..c35b8e6d5 100644
--- 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
     #