Book Image

Adobe Acrobat Ninja

By : Urszula Witherell
Book Image

Adobe Acrobat Ninja

By: Urszula Witherell

Overview of this book

Adobe Acrobat can help you solve a wide variety of problems that crop up when you work with PDF documents on a daily basis. The most common file type for business and communication, this compact portable document format is widely used to collect as well as present information, as well as being equipped with many lesser-known features that can keep your content secure while making it easy to share. From archive features that will keep your documents available for years to come to features related to accessibility, organizing, annotating, editing, and whatever else you use PDFs for, Acrobat has the answer if you know where to look. Designed for professionals who likely already use Adobe Acrobat Pro, this guide introduces many ideas, features, and online services, sorted and organized for you to easily find the topics relevant to your work and requirements. You can jump to any chapter without sifting through prior pages to explore the tools and functions explained through step-by-step instructions and examples. The information in some chapters may build on existing knowledge, but you are not expected to have an advanced level of prior experience. By the end of this book, you’ll have gained a solid understanding of the many capabilities of PDFs and how Acrobat makes it possible to work in a way that you will never miss good old ink and paper.
Table of Contents (16 chapters)

Understanding the validation process

Not all .pdf documents need to be signed. Those that need signatures usually involve contracts, purchases, permits, and so on. Let’s see how the process of validation happens. Without validation, all the prior work to ensure security is not very meaningful.

When a signed document is received, validation of the signature(s) confirms the identity of the signer and the authenticity of the content signed. Once set up, validation takes place automatically. There are two aspects of validation:

  • Confirmation that the signer’s certificate exists in the list of trusted identities. In our example, this would be the local hard drive Security folder for Acrobat. It also validates that the certificate is not expired and that it fits the requirements of the Acrobat or Reader configuration.
  • Verification of document integrity and confirmation that the signed content was not changed after it was signed. If the content does change, the...