WP Ghost does not affect the accessibility of existing assets, such as images and PDFs, that Google may have already indexed. These files remain available through their default paths, ensuring that previously indexed URLs continue to function as expected.
Additionally, if you choose to use the Hide WordPress Common Paths option to enhance security, you can include MEDIA files in this setting. When enabled this option all old media file URLs will be automatically redirected to the new paths, ensuring continuity for both search engines and users.
This feature allows you to secure your site’s structure without disrupting existing assets or impacting your site’s SEO performance.