1279 Acrobat PDF/X - Portable Document Format - Exchange PDF/X-5n Presentation PDF/X was developed by the Committee for Graphics Arts Technologies Standards (CGATS) and Adobe. This 'exchange standard' format is based on Adobe's PDF specification and includes additional notes specifically to facilitate graphics exchange. PDF/X is a subset of the PDF specification, and is an application standard as well as a file format standard. There are several versions of the standard, which address specific issues. 1 Digital Preservation Department / The National Archives 18 Dec 2012 18 Dec 2012 application/pdf MIME fmt/492 PUID pdf File extension 765 PDF/X-5n BOF: %PDF-1.(0-7). Specification is based on 1.6, however doesn't specifically preclude other versions. <pdfxid:GTS_PDFXVersion>PDF/X-5n</pdfxid:GTS_PDFXVersion> 1 Absolute from BOF 0 255044462D312E[30:37] 1 Variable 3C7064667869643A4754535F5044465856657273696F6E3E5044462F582D356E3C2F7064667869643A4754535F5044465856657273696F6E3E Has priority over 613 Acrobat PDF 1.0 - Portable Document Format Has priority over 614 Acrobat PDF 1.1 - Portable Document Format Has priority over 615 Acrobat PDF 1.2 - Portable Document Format Has priority over 616 Acrobat PDF 1.3 - Portable Document Format Has priority over 617 Acrobat PDF 1.4 - Portable Document Format Has priority over 618 Acrobat PDF 1.5 - Portable Document Format Has priority over 637 Acrobat PDF 1.6 - Portable Document Format Has priority over 869 TrueType Font Has priority over 1016 Acrobat PDF 1.7 - Portable Document Format Is subtype of 637 Acrobat PDF 1.6 - Portable Document Format