In order to reflect the files in a comment, I believe you would have to copy text and then paste it into a word document on your own computer. That text can be copied and pasted to a comment, I do it on occasion with quotes I’ve saved. A full article would have to be archived in a public domain in order to be source or excerpted.
Thanks for your response. Paterfamilias commented that he/she copied a PDF file from Acrobat reader and successfully pasted it to FR.
My PDF files are uploaded on an Acrobat site, but I’m not sure it will give the source link to pull it from there to FR. But I can go back and try.
Appreciated.