In this post, we will discuss how to enable BLOB CACHE to use in Image Radiation in SharePoint 2013.
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A new concept to SharePoint 2013 is image renditions. The basic purpose of image renditions is to offer differently sized versions of images uploaded into SharePoint. To take advantage of this useful feature, you need to be working on a site with publishing features enabled, and also have BLOB caching enabled for your web application.
1- Go to the following directory: C:\inetpub\wwwroot\wss\VirtualDirectories.
2- Open the folder of the web application in which BLOB caching will be enabled.
3- Create a backup copy of the web.config file. This is always recommended if you ever need to edit or modify this file, so you can always revert back in the event that something happens.
4- Open the web.config file in Notepad or another editor.
5- Press Ctrl+F to open the Find dialog and type <BlobCache.
6- Press Enter to perform the search, which brings up the following line:
<BlobCache location=”C:\BlobCache\14″ path=”\.(gif|jpg|jpeg|jpe|jfif|bmp|dib|tif|tiff|themedbmp|themedcss|themedgif|themedjpg|
rmvb|wma|wmv|ogg|ogv|oga|webm|xap)$” maxSize=”10″ enabled=”false” />
At the end of the line, change enabled=”false” to enabled=”true”.
7- Save the web.config file.
8- Now you can use image radiation feature in your site.
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