The entries in these dictionaries determine the nature and features of the signature, and by extension, what data can be available to any PDF viewer designed to process the signature data. 这些词典中的条目确定了签名的性质和特征。并且这些词典通过扩展确定了用于处理签名的PDF查看器可以使用的那些数据。
英文Digital Signature(数字签名) 则是 Electronic Signature(电子签名) 的一种特定类型,可以说是一种改进型的更加可信的电子方式签名,准确的中文全称应为:数字方式签名,简称:数字签名,以区分电子方式签名。数字签名是使用数字证书来验证签名者的身份,并通过密码算法将签名者身份绑定到文档中来证明签名行为的不可否认,...
Digital Signatures in a PDF This document describes how digital signatures are represented in a PDF document and what signature-related features the PDF language supports. Adobe® Reader® and Acrobat® have implemented all of PDF's features and therefore provide comprehensive support for the ...
The Syncfusion UWP PDF library provides a completely customizable appearance for its e-signature. The content of the signature can be images, texts, graphics, and shapes. Long-Term Validation (LTV) LTV signatures allow you to check the validity of a signature long after signing the document. Al...
Smallpdf can help you create a digital signature and digitally sign your documents within minutes. You can also request verifiable signatures.
Digital Signatures in a PDF Representing a signature in a PDF file Public key infrastructure PKI, PDF, and signing PKI, PDF, and signature validation Pricing Plan Cheapest Pricing Plans Our simplest subscription-based pricing model suite for all business and individual and perform better ROI. ...
可以看到第一个Alice的签名是Certification (author) signature(这个我们会在后期继续细化整理时提到),在一个PDF文档中,最多只允许有一个,它是附带权限的,而后续三个是Ordinary (approval) signature 一个PDF文档中可以有多个。Certification (author) signature的权限根据设置,有三种限制:。1.CERTIFIED_NO_CHANGES_ALLO...
Step 1: Open Signaturely.com and Create a Free Account Signaturely is a web app (free PDF signer) that you can use to add your digital signature to any device or gadget, such as Android, iPhone, PC, or Mac. First, navigate to signaturely.com and create a free signaturely account. ...
Digital Signature Add a Digital Signature to PDF by p12 etc format file Add a Digital Signature to the PDF by Japan My Number Card (must link to USB smart c…
Using the digital signature feature is a breeze. We're committed to making your document management as efficient and pain-free as possible. Here’s how: Step 1: Open your PDF document with PDF Reader Pro. Step 2: Click on the ‘Digital Sign’ tool. Step 3: Create a new signature, ...