The Media Library can be found in the left-hand sidebar of the admin dashboard.
In the Media Library, you can view all of the images and documents uploaded to the site and upload new files by dragging and dropping or by clicking Add New and selecting from your computer. The media uploaded here can be accessed from anywhere on the site such as in featured images, background images, and galleries.
If you upload a document to the library, you can click it to open the settings, then copy the file URL by clicking “Copy URL to clipboard” in the right-hand details section. This URL can be inserted as a link anywhere on the site or shared externally for users to view and download that file.