What do we have to do if we do not want to send the document to tiff as we click on the document.

Resolution

This can be achieved ny disabling the tiff on fly rights attribute.

Under administrative tab, navigate to 

 Administration>>Project group>> Select the project and the user group
Uncheck the "Allow to tiff the fly for the web" checkbox.
You might have to clear the cache and restart the IIS in order to reflect the changes.

This will disable the tiff on fly for the selected user group for the given project.