Do your users, via the site search component, need the ability to search inside PDF documents? What about Word and Excel files? If so, your site will need this component.
While the site search component provides a way to search your entire site, it only works for text content that is viewable directly on the website. Note that this is true for nearly every website and it is a part that companies have struggled with for years.
Our custom search component makes use of a service by Google to search the entire site as well as uploaded documents. We will integrate it with your site and take care of all the back-end stuff to ensure it works now and in the future (e.g., sitemaps, crawling rate).