The IESG has approved the following document: - 'The application/pdf Media Type' (draft-hardy-pdf-mime-05.txt) as Informational RFC This document has been reviewed in the IETF but is not the product of an IETF Working Group. The IESG contact person is Alexey Melnikov. A URL of this Internet Draft is: https://datatracker.ietf.org/doc/draft-hardy-pdf-mime/ Technical Summary The Portable Document Format (PDF) is an ISO standard (ISO 32000-1:2008) defining a final-form document representation language in use for document exchange, including on the Internet, since 1993. This document provides an overview of the PDF format and updates the media type registration of "application/pdf". Working Group Summary This is not a WG document. Document Quality This is a straightforward update to RFC 3778 that reflects transition from proprietary specification by Adobe to an open ISO Standard. Media type Registration template, history of PDF and status of popular PDF implementations were updated. Personnel Alexey Melnikov is the Responsible Area Director.