README.md in paperclip-aws-1.3.5 vs README.md in paperclip-aws-1.4.0

@@ -10,10 +10,11 @@
 * supports both `http` and `https` urls;
 * supports expiring urls;
 * supports different permissions for each Paperclip style;
 * can generate urls for `read`, `write` и `delete` operations;
 * correctly sets content-type of uploaded files;
+* ability to set content-disposition of uploaded files;
 * **supports amazon server side encryption** (thanks to [pvertenten](https://github.com/pvertenten));
 * highly compatible with included in Paperclip S3 storage module
 
 
 ## Requirements ##
@@ -50,12 +51,20 @@
                         :s3_permissions => :public_read,
                         :s3_protocol => 'http',
                         :s3_options => {
                           :sse => 'AES256',
                           :storage_class => :reduced_redundancy
+                          :content_disposition => 'attachment'
                         },
                         
                         :path => "company_documents/:id/:style/:data_file_name"  
+                        
+      # You also can modify @s3_options hash directly.
+      before_save do
+        self.data.s3_options[:content_disposition] = "attachment; filename=#{self.data_file_name}"
+        self.data.s3_options[:sse] = true if self.confidential_information?
+        self.data.s3_options[:storage_class] = true if self.unimportant_information?
+      end                          
     end
                       
 ## Possible options ##
 
 ### :endpoint ###
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