I uploaded to the wp-content/uploads/2016/04 folder in cpanel over 200 PDF files of sizes ranging from 100 MB to over 500 MB. The reason I uploaded them to cpanel, and not using Upload Media in the Media Library was that I kept getting HTTP errors using WP. BUT, I don't know how to "link" the media items in the uploads folder to my WP database so I can insert them into my wikis.
Also, I just now tried, again, to upload just 1 of the 200+ files into first a Wiki, then independently into the Media Library. I used both the multi-file uploader, then the single file uploader. After less than a minute of uploading the file, I get the HTTP error.
This problem started early April, and here it is at the end of April and it is still happening.
The Add Media option as well as the Media Multifile uploader works for smaller files. Also, I had little difficulty uploading the files into cpanel - same server as WP uses for my site, just using cpanel software not WP software. All the permissions are identical in the uploads folder for 2016 04, so it's not permissions.
The EASIEST thing would be for you to tell me how to "link" or edit some file in WP to include all the filenames of the 200+ new files so WP 'knows' I have them.
There 'should' be some index file that has those names, correct?