AS ISO 24517.1:2017 pdf download.Document management—Engineering document format using PDF Part 1: Use of PDF 1.6 (PDF/E-1).
4 Notations
For the purposes of this part of ISO 24517, references to “PDF Reference” are to the Adobe PDF Reference, fifth edition version 1.6, as modified by Errata for PDF Reference, fifth edition version 1.6, and by Addendum on Blend Modes as identified in Clause 2.
PDF operators, PDF keywords, the names of keys in PDF dictionaries, and other predefined names are written in bold sans serif font; operands of PDF operators or values of PDF dictionary keys are written in italic sans serif font.
EXAMPLE I The Default value for the TR2 key.
Token characters used to delimit objects and describe the structure of PDF files, as defined in PDF Reference, 3.1, may be identified by their ISO/IEC 10646 character name written in uppercase in bold sans serif font followed by a parenthetic two digit hexadecimal character value with the suffix “h”.
EXAMPLE 2 CARRIAGE RETURN (ODh).
Text string characters in content streams, as defined by PDF Reference, 3.8.1, may be identified by their ISO/IEC 10646 character name written in uppercase in bold sans serif font followed by a parenthetic four-digit hexadecimal character code value with the prefix “U+”.
EXAMPLE 3 EN SPACE (U+2002).
5 PDF/E-1 conforming files and readers
This part of ISO 24517 specifies the use of the PDF file format for the exchange of digital data representing a compound entity.
A PDF/E-1 conforming file is a PDF file in which those features necessary for the exchange of a compound entity are in accordance with this part of ISO 24517. A PDF/E-1 conforming file may also include other valid PDF features that do not affect display or function of the compound entity.
PDF/E-1 conformance is identified by use of the pdfe:ISO_PDFEVersion property as defined in 13.3. The value of the ISO_PDFEVersion key in the document information dictionary shall be PDF/E-1 for a PDF/E-1 conforming file. Neither the version number in the header of a PDF file, nor the value of the Version key in the Catalog of a PDF file indicates that a file is in accordance with this part of ISO 24517.
NOTE I These values are specified in Table 1 of 13.3.
Although PDF Reference permits compliance with earlier versions of PDF, features described in versions of the PDF specification earlier than 1.6, but not described in PDF Reference, shall not be used in a PDF/E-1 conforming file.
A PDFIE-1 conforming writer is a software application that is able to write files in accordance with the requirements of this part of ISO 24517.
A PDF/E-1 conforming reader is a software application that shall be able to read and appropriately process all
PDFIE-1 files in a manner conforming to the requirements for PDFIE-1 files as defined in this part of
ISO 24517.
A PDF/E-1 conforming reader may parse PDF files that are not PDF/E-1 conforming files. The behaviour of a PDF/E-1 conforming reader on non-conforming files is beyond the scope of this part of ISO 24517.AS ISO 24517.1 pdf download.