About: http://webisa.webdatacommons.org/131765011

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	They are a file format developed by Adobe that allow print documents to be read by a large number of different types of computers and devices.
http://www.w3.org/ns/prov#wasQuotedFrom	primaryresources.co.uk