图形技术.PDF文件的打印产品元数据.第1部分:元数据的体系结构和核心要求

[中文适用范围]： 符合本文档的 PDF 文件中的文档部分元数据可用于传达打印产品及其组件的预期外观。 预期用途的示例包括：生产过程中的直接解释、创建作业单（例如 XJDF）或在 MIS 中填充记录。 本文档基于 ISO 16612-2 (PDF/VT) 和 PDF 文件中指定的 DPart 语法。 注意 本文档中提供的文档部分元数据适用于各个文档部分，而 XMP 元数据通常适用于整个文档的范围。 XMP 可以应用于单个页面或页面的一部分的范围，但这种用法非常不常见。 因此，XMP 不适用于页面集需要元数据的情况，例如多个收件人或绑定信息。 例如，XMP 在 PDF/X 中用于文件一致性标识，也用于其他文件级信息（例如作者）。 本文件定义标准化元数据以： ——提供产品意图规范，例如纸质介质选择和装订信息； ——确定内容页面旨在代表的产品类型（例如小册子、信件或明信片）； ——确定可变文档打印应用程序的每个内容页的预期接收者。 本文档定义了基本一致性级别，其中包括元数据框架的语法和一组核心元数据的语义。 [外文原描述]： The document part metadata in a PDF file that conforms to this document can be used to communicate the intended appearance of print products and their components. Examples of intended use are: direct interpretation within a production process, creation of job tickets such as XJDF, or populating records in an MIS. This document builds on the DPart syntax as specified in ISO 16612‑2 (PDF/VT) and ISO 32000‑2 (PDF 2.0) which is designed for encoding metadata related to pages or groups of pages in PDF files. NOTE The document part metadata provided in this document applies to individual document parts, whereas XMP metadata typically applies to the scope of the entire document. XMP can apply to the scope of an individual page or part of a page but this usage is very uncommon. Thus, XMP is not applicable for the case where metadata is required for sets of pages such as multiple recipients or binding information. For example, XMP is used within PDF/X for file conformance identification and is also used for additional file level information such as author. This document defines standardized metadata to: — provide product intent specifications such as paper media selection and binding information; — identify the type of product that the content pages are intended to represent (e.g. a brochure, letter or postcard); — identify the intended recipient of each of the content pages for variable document printing applications. This document defines a base conformance level that includes the syntax of the metadata framework and the semantics of a core set of metadata.