AS ISO 19005.2:2017 pdf free

AS ISO 19005.2:2017 pdf free.Document management – Electronic document file format for long-term preservation
In recognition of the varying preservation needs of the diverse user communities making use of PDF files, this part of ISO 19005 defines a Level B conformance level. Level B conforming files shall adhere to all of the requirements of this part of ISO 1 9005 except those of 6.2.11.7 and 6.7. A file meeting this conformance level is said to be a“conforming PDF/A-2b file”.
NOTE 1 The Level B conformance requirements are intended to be the minimum necessary to ensure that the rendered visual appearance of a conforming file is preservable over the long term. However, Level B conforming files might not have sufficiently rich internal information to allow for the preservation of the document’s logical structure and content text stream in natural reading order, which is provided by Level A conformance. The requirements for Level A conformance place greater responsibilities on writers of conforming files and those preparing such files, but these requirements allow for a higher level of document preservation service and confidence over time. Additionally, Level A conformance facilitates the accessibility of conforming files for physically impaired users.
NOTE 2 A Level B conforming file can include features from 6.2.11.7 and 6.7 but still be identified as Level B.In recognition of the varying preservation needs of the diverse user communities making use of PDF files, this part of ISO 19005 defines a Level U conformance level. Level U conforming files shall adhere to all of the requirements of this part of ISO 19005, except those of 6.7. A file meeting this conformance level is said to be a“conforming PDF/A-2u file”.
NOTE 1 The Level U conformance requirements are intended to be those necessary to ensure that not only is the rendered visual appearance of a conforming file preservable over the long term, but that any text contained in the document can be reliably extracted as a series of Unicode codepoints. However, Level U conforming files might not have sufficiently rich internal information to allow for the preservation of the document’s logical structure and content text stream in natural reading order, which is provided by Level A conformance. The requirements for Level A conformance place greater responsibilities on writers of conforming files and those preparing such files, but these requirements allow for a higher level of document preservation service and confidence over time. Additionally, Level A conformance facilitates the accessibility of conforming files for physically impaired users.AS ISO 19005.2 pdf free download.