Add option to strip EXIF profiles

README.md

@@ -52,6 +52,11 @@ responsive_image:
   # working with JPGs directly from digital cameras and smartphones
   auto_rotate: false
 
+  # [Optional, Default: false]
+  # Strip EXIF and other JPEG profiles. Helps to minimize JPEG size and win friends
+  # at Google PageSpeed.
+  strip: false
+
   # [Optional, Default: assets]
   # The base directory where assets are stored. This is used to determine the
   # `dirname` value in `output_path_format` below.

lib/jekyll-responsive-image/config.rb

@@ -9,7 +9,8 @@ class Config
         'extra_images'       => [],
         'auto_rotate'        => false,
         'save_to_source'     => true,
-        'cache'              => false
+        'cache'              => false,
+        'strip'              => false
       }
 
       def initialize(site)

lib/jekyll-responsive-image/resize_handler.rb

@@ -36,6 +36,9 @@ def resize_image(img, config)
 
           Jekyll.logger.info "Generating #{target_filepath}"
 
+          if config['strip']
+            img.strip!
+          end
           i = img.scale(ratio)
           i.write(target_filepath) do |f|
             f.interlace = i.interlace