How to use Image Renditions in SharePoint

Hi Friends,

In this post we are going to learn What are the Image Renditions and how we can use it in SharePoint.

Image renditions helps to display a single image into various sizes based on our needs. Apart from choosing size, it also allows you to crop the image while adding it to the publishing page.

So based on our needs, we can display abcd.jpg as Logo, Banner and Thumbnail etc., This technique helps in reducing the size of the file that is downloaded to the client, which then improves site performance. You can find some of the ways to improve SharePoint site speed and performance here.

The other advantage if you notice, we need not to create different sized images i.e., one for logo, one for thumbnail etc.,. With Image renditions we can display a single image into multiple sizes.

Below are the prerequisites for using Image Renditions 

•  Publishing Site
• BLOB Caching enabled(Follow this link on how to configure BLOB cache and its uses)

Please find the below steps on how we can configure Image Renditions.

1.     Go to the top-level site of the publishing site collection.

2.    Choose the Settings icon. On the Site Settings page, in the Look and Feel section,  choose Image Renditions.

3.    This will show you list of available Image Renditions available on this site. We can  modify the existing one, Or we can even create our own based on required dimensions.

          4.       ID indicates the RenditionID. We will be using this RenditionID as a parameter to                       specify the dimensions of an image we need.

         5.       If we want to construct image URL directly from the RenditionID, we just need to                  add it as a  Query String.

Examples: If we want display abcd.jpg as 100*100 on a page, then my image source URL will be “abcd.jpg?RenditionID=1”

If we want display abcd.jpg as 200*200 on a page, then my imgage source URL will be “abcd.jpg?RenditionID=2”

        6.       If we want to insert the image in the page content then follow the below steps. 

a)     Edit the page and place the cursor in the Page Content field.

b)    From the Ribbon Insert tab, choose Picture, and then choose From    SharePoint.

c)     Select the image that you want to add to the page and then choose Insert. The image will be displayed at full size.

d)    Next on the Design tab, in the Select group, choose Pick Rendition, and then select an  image rendition whichever required. That’s it, the image will display according to the size  specified for the image rendition.

Hope this helps...