If you need to hide pages from search results, use the right tool for the job....

https://www.mediafire.com/file/h1904rra99nljh1/pdf-58466-24674.pdf/file

If you need to hide pages from search results, use the right tool for the job. Add a "noindex" tag to the page code for a clean, permanent removal. If you need it gone immediately, use the Google Search Console Removals tool to hide it temporarily