PDF格式作为世界最流行的文件格式，其文件标准的确定至关重要。

PDF技术自1993年问世以来已获得巨大进步。2007年PDF技术获得ISO标准认可，如今该技术包含多项ISO标准，PDF格式在世界范围内逐渐推广，受到全球信赖。

不管用哪种软件，PDF都能以同一种格式在世界各地发挥作用，因而PDF文件的标准化至关重要。自2017年PDF核心标准修订以来，行业需求和行业要求不断变化。为符合新的行业要求，PDF新核心标准也于近日更新。

《文档管理-便携式文档格式》（ISO 32000-2）第二部分—PDF2.0为电子文件指定数字格式，利于用户在任何环境下交换和查看电子文件。此文档可供PDF读写以及交互式PDF处理器的开发者参考。

PDF标准文件有一千页左右，此次修订包括大量的更正和说明。其中最主要的修订是：

    · 对附件F“线性化PDF”和附件L“PDF 2.0标准结构名称空间中标准结构元素之间的层次关系”的重大更新；

    · PDF字符集合有更新；

    · 一些重要规范参考有更新。

ISO32000-2根据技术委员会文件《文件管理应用程序》（ISO/TC171），小组委员会文件《文件格式》（SC 2），EDMS系统和信息的真实性制定。文件制定秘书处由ISO成员美国国家标准协会担任。文件可通过ISO商店获取。

THE STANDARD FOR PDF IS REVISED

Ensuring the world’s most popular document format is as relevant as ever.

PDF format has come a long way since it was first developed in 1993. Defined by an ISO standard since 2007, the world of PDF technology now includes a multitude of ISO standards, testimony to the breadth and depth of the format’s reach throughout the global economy.

Standardization is vital to PDF’s magic as it enables it to look and function the same way everywhere, regardless of the location or software used. The core standard for PDF has just been updated to align with industry needs and requirements that have evolved since its last revision in 2017.

ISO 32000-2 , Document management – Portable document format – Part 2: PDF 2.0, specifies a digital form for representing electronic documents, enabling users to exchange and view electronic documents independent of the environment in which they were created, viewed or printed. The document is intended for developers of PDF writers, PDF readers and interactive PDF processors.

The thousand-page standard has been updated with hundreds of corrections and clarifications. Some of the most notable changes include:

Significant updates to Annex F, “Linearized PDF”, and Annex L, “Parent-child relationships between the standard structure elements in the standard structure namespace for PDF 2.0”

Updates to PDF character collections

Updates to several important normative references

ISO 32000-2 was developed by technical committee ISO/TC 171 , Document management applications, subcommittee SC 2, Document file formats, EDMS systems and authenticity of information, whose secretariat is held by  ANSI,the ISO member for the United States. It is available from your national ISO member or the ISO Store.

文章来源：@欧盟驻华标准化SESEC

原文链接：

https://www.iso.org/news/ref2608.html