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)

Certifying a document

Certifying a .pdf document confirms the integrity of its content. Let’s use an example of a real estate contract, with many clauses and disclosures. To ensure that the content of the contract itself is not modified, the document should be certified. However, the purpose of the contract is to have two or more parties agree on the terms spelled out. This is where signatures come in. Signatures validate signers’ identity and confirm that the person(s) agrees with the content even with legal consequences. If pages or content are modified or removed, the document is no longer certified.

The following diagram illustrates the process:

Figure 8.14 – Certification versus signing of a PDF

Figure 8.14 – Certification versus signing of a PDF

Important note

You can apply a certifying signature only if the PDF doesn’t already contain any other signatures.

What does certifying a document mean in the real world? It is timing. Certified documents can be signed if...