Working with Default Http Headers Default Http Headers overview Sometimes you may need to apply pre-defined set of http headers automatically when you upload files to Amazon S3. For example Expires header. Starting from version 2.9.9 S3 Browser allows you to apply default http headers automatically during uploading. Below we will show you how to define default http headers in S3 Browser.
To add new default Http header 1. Click Tools -> Default Http Headers 
Click Tools -> default http headers to configure default http headers. Default Http Headers dialog will open: 
Default http headers dialog allows you to view/edit/delete default http headers Here you can view, edit and delete pre-defined http headers. You can configure header to be applied for specific bucket(s) and/or file(s) only. 2. Click the Add button 
Click the Add button to add new default http header. Add New Default Http Headers dialog will appear: 
Add New Default Http Headers dialog allows you to add new default http header 3. Fill out Bucket name, File name, Header name and Header value and click Add new header. Bucket name and File name are optional fields. If you will leave them empty, S3 Browser will apply this header for any file you upload to any bucket. For example if you need to apply Expires header only to *.png files in a bucket called production-images you will need to add the following default http header: - Bucket: production-images
- File name: *.png
- header name: Expires
- header value: Fri, 17 Jun 2011 12:45:47 GMT
As you see wildcards are allowed to use in a bucket name and in the file name. 3. Click Save changes
To Edit Existing HTTP Header 1. Select the header you want to edit and click the Edit button 
Click the Edit button to edit selected http header Edit Default Http Headers dialog will appear 
Edit Default Http Headers dialog 2. Change desired properties and click Save changes.
To delete one or multiple default Http headers 1. Select the headers you want to delete 2. Click Delete or press Del on your keyboard 
Click the Delete button to delete http headers 3. Click Save changes
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