PDF attachments aren’t showing. Goes to a “leave a comment” page instead

The attachment page is set up by WordPress for each media file. It serves as a view of the file in the frontend, generated with a template from the theme used and thus also structured from its template parts. In your case, the Elementor templates from the header and footer are used here. In between, there is probably an output from your theme that also offers the option of comments.

However, the “view attachment page” link is not available in WordPress. It is usually just called “View.” Next to it, you should also have a link called “Copy URL” that you can use to copy the actual PDF URL. See: https://wordpress.org/documentation/article/media-library-screen/

This gives you the following tips:

• To get the URL of the PDFs in your media library, use “Copy URL.” This option is available in the media library at several locations on the files, see link above.
• If you want to do without the attachment pages, you can deactivate them in various ways. See: https://www.wpbeginner.com/wp-tutorials/how-to-disable-image-attachment-pages-in-wordpress/
• Also check whether you have actually enabled comments in your project. If you do not want any comments on any content, deactivate them in your project settings. See: https://www.wpbeginner.com/wp-tutorials/how-to-completely-disable-comments-in-wordpress/