标准摘要
[中文适用范围]： 本文件规定了PDF数字签名（PAdES）中定义的、能够在长时间内验证数字签名的要素。 它没有提供关于数字签名本身的新技术规范，也没有对已存在的数字签名技术规范的使用施加新的限制。 [外文原描述]： This document specifies the elements, among those defined in PDF digital signatures (PAdES), that enable verification of a digital signature over a long period of time. It does not give new technical specifications about the digital signature itself, nor new restrictions of usage of the technical specifications about the digital signatures which already exist.
英文名称Processes, data elements and documents in commerce, industry and administration — Long-term signature — Part 3: Profiles for PDF Advanced Electronic Signatures (PAdES)