How to Figure Out The Images that are Not Used in the site but uploaded in the files.

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Hi community!
I am working on a concrete5.7 site in which the previous developer has uploaded images in the files that we are not using in any of the pages or articles in our site. That means these are extra and duplicate items that we want to remove as they are not necessary to us.While deleting the files, there arises a situation that we can't figure out which files are being used and which files are not. Since the site has thousands of pages and files, it's really difficult to check each of the pages and files to rectify the issue. Is any way to find out easily which files are not being linked or used in any of the pages.
Thanks in Advance!

 
tallacman replied on at Permalink Reply
tallacman
Unfortunately, I do not believe there is an easy answer to this.
ExRxNet replied on at Permalink Reply
Is there any possible way to do this?