精通Adobe Acrobat DC：JavaScript增强PDF表单

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"Enhancing Adobe Acrobat DC Forms with JavaScript" 是一本专著，旨在帮助读者提升在Adobe Acrobat DC中使用JavaScript创建和改进PDF表单的技能。作者Jennifer Harder通过本书展示了如何利用简单的JavaScript代码实现更高效的工作流程，特别是当处理多个PDF文档时。在本书中，你将学习到： 1. 如何利用表单元素创建计算、评分表单以及QR码印章。这些功能可以极大地提高数据处理的效率和准确性。 2. 探索简化字段记号和基本的Acrobat JavaScript，使你能更好地控制和自定义表单的行为。 3. 使用按钮进行导航，创建交互式表单，使得用户能够轻松地在不同页面或表单部分之间移动。 4. 处理复杂的表单，包括下拉框、列表框与其他表单字段的组合，以提供更丰富的用户输入选项。 5. 结合Action Wizard和JavaScript，实现自动化工作流程，减少手动操作的时间和错误。 6. 优化表单的导航，确保用户能够顺畅地浏览和填写表单，同时改进表单的打印效果。 7. 添加各种类型的提醒和自定义验证，以确保用户输入的数据质量，减少无效或错误的数据。这本书适合初学者至中级水平的读者，通过逐步讲解和实例，使得JavaScript在Acrobat中的应用变得不再难懂。无论你是Adobe Acrobat DC的新用户还是老用户，都能通过书中提供的截图和实际操作示例来理解和应用这些技术。此外，书中的技巧和解决方案可以帮助你解决在创建和管理PDF表单过程中可能遇到的问题。通过阅读并实践"Enhancing Adobe Acrobat DC Forms with JavaScript"，你不仅可以提升你的PDF文档处理能力，还能掌握一项强大的工具，使你的工作流程更加高效，从而在IT行业中脱颖而出。

xvii

About the Technical

Reviewer

Dan Carr is a veteran software developer and UX designer specializing in vanilla

JavaScript, web components, React, and Node. During a decade of consulting with Adobe,

Dan produced articles, tutorials, and product features for Dreamweaver, Flash, Flex, and

Authorware. Life currently finds him enjoying the weather in Westside Los Angeles.

xxi

Introduction

Welcome to the first step in an exciting journey I call Enhancing Adobe Acrobat DC Forms

with JavaScript.

My journey into learning about Adobe software began 17 years ago when I started

college. I took a two-year Graphic Communications course in Vancouver, BC. While

learning about how to set up documents for print layout using QuarkXPress and later

Adobe InDesign, I created PDF files. At that point, I only saw the PDF as a transition from

one file format to the next production step, from layout to the printing press. It never

crossed my mind what else could be done with PDF files in Adobe Acrobat.

Several years after graduating, while doing freelance work for one of my clients,

I began to investigate the features of Acrobat to discover what else the program had to

offer. In 2008, I decided to learn more about web design and improve my layout skills

in Adobe software. After finishing three certificates in Web Design at Langara College

Continuing Studies, I realized that I wanted to help students learn more about Adobe

software. There were times through the journey when I read different computer books

and felt, “OK I’ve finished this tutorial or project, but how does this relate to the real world

and what I’m trying to accomplish?” In 2011, I became a Teaching Assistant at Langara

College and this gave me the opportunity to write my own course on introducing students

to Adobe Acrobat. While writing it, I realized there was a lot more that could be said about

Acrobat than what I could present in three-evening course. At that point, I was looking at

one icon in the Acrobat menu that perplexed me. It was called JavaScript.

JavaScript in Acrobat? What is this doing here? The only JavaScript that I knew about

at that point was through building websites. I had built a few basic template forms using

LiveCycle Designer, MS Word, and Acrobat, but I had never used JavaScript in the Acrobat

program. So I began to wonder how JavaScript could improve my forms.

So, this is when and how the idea began for developing a book for students on the

topic of Acrobat and JavaScript. After years of research, looking at Adobe and Acrobat

forums, and studying the questions and concerns users had when trying to add JavaScript

to Acrobat, I came to the following conclusions:

• Users are looking for simple solutions to programing an Acrobat

form that they will use in real-world situations. Many are looking

for the same answers.

• When documentation is not written in a simplified manner, the

average user becomes intimidated. They will shy away from using

the JavaScript menu and eventually give up and ignore the tool.

To them, JavaScript coding is like a foreign language, and the

average person who has not taken web design lessons does not

have a clue what it means or where the code should be inserted,

since the form field’s property dialog boxes look nothing like a

web page.

■ IntroduCtIon

xxii

• At some point, it’s important to share with others what you have

learned about Acrobat and JavaScript and not keep your thoughts

to yourself. That’s what leads to innovative ideas. However, these

thoughts need to be organized so that the user can find the

solution quickly and be able to comprehend it.

Shortly after compiling my notes, Adobe introduced the latest version Acrobat DC.

I saw that the layout of the program had changed and now there was no book to show the

user how to add JavaScript in this new format. I completed the first draft of my Advanced

Adobe course and had it approved by my Program Coordinator at the college. In 2016,

I realized I could reach a wider audience if the book was published and so I approached

Apress. They saw my vision, and that is how this book came to be in your possession.

Understanding How Acrobat DC and Its Forms

Work with JavaScript

If you are currently using Adobe Acrobat Pro XI or older, it’s time to upgrade to the new

Acrobat DC Pro. You can either acquire Adobe Acrobat DC as a stand-alone program

through Adobe or get a Creative Cloud subscription and enjoy all the exciting Adobe

programs for a monthly fee. Refer to these links and check if your computer’s operating

system meets the system requirements needed for the upgrade:

https://helpx.adobe.com/creative-cloud/system-requirements.html

https://helpx.adobe.com/acrobat/system-requirements.html

Make sure to follow the online instructions and tutorials for installing and working

with Acrobat and Creative Cloud.

If you are new to Adobe Acrobat DC, I encourage you to first read the book Adobe

Acrobat DC Classroom in a Book by Brie Gyncild and Lisa Fridsma. This book will give

you a basic overview of the new Acrobat DC features as well as form basics in Chapter 10.

However, that book does not go into detail regarding forms when working with JavaScript.

I consider my book to be the part 2 for intermediate and advanced users to take their

forms to the next level.

Adobe Acrobat DC will allow you to add form fields to any PDF file, as I will explain

further in Chapter 1. It can even work with pre-existing form fields that were created

in Adobe InDesign CC when the file was exported as an interactive PDF. However,

it’s important that your client views and interacts with the forms in Acrobat DC Pro,

Standard, or Acrobat Reader. Other PDF readers, like Mac Preview, have been known to

corrupt the JavaScript programing, so keep this in mind when you email the forms.

Another possibility is that the user may have disable the use of JavaScript under

Edit ➤ Preferences Categories JavaScript.

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