For any url or a JSON with urls in one of the fields, this saves the html and a pdf of the page.
To use with multiple documents-
a = URLArchiver.new("multiple") (or "multifull" to also get full text)
a.multiarchive(json, "fieldname")
a.genOutput (to get the input JSON with the paths to the html and pdfs)
To use with a single document-
a = URLArchiver.new("single")
a.archiveone("url")
a.genOutput (if you want a JSON with the page text and paths)