About: http://webisa.webdatacommons.org/414459380

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	It costs around $80 but it has some additional functionality such as the ability to combine PDFs as well as combining other types of files into PDFs.
http://www.w3.org/ns/prov#wasQuotedFrom	jgen.ws