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Archive: JavaScript

Fields That Trigger Fields - The watch() method

Kas Thomas

The watch() method, although present in Acrobat JavaScript, doesn't work correctly (at least under Acrobat 4.05 for Mac). It causes the property that's being "watched" to become undefined.

Developer   July 20, 2001

Numerical Methods and ASCII in AcroJS

Kas Thomas

The (disturbing) subject of bugs in Acrobat, and points out one problem that could very well cause you grief if you ever try to do any numerical operations on character values in strings.

Developer   July 20, 2001

Popping an Alert - How it's done

Kas Thomas

Kas shares with us an efficient way of popping windows-based messages from within PDF documents.

Developer   July 20, 2001

What Good Is 'this'? - The object reference parameter

Kas Thomas

Kas tells you how to get rid of the object reference parameter "this", the advantages and drawbacks of using it in various contexts.

Developer   July 18, 2001

JavaScript Advice - Intending to create forms

Kas Thomas

Kas discusses a range of issues relating to JavaScript for those who want to hit-the-ground-running.

Developer   July 01, 2001

Constructing a User-defined Constructor

Kas Thomas

Like most object-oriented languages, JavaScript supports the notion of object "constructors" (special procedures for creating objects). But did you know you can create your own constructors (for custom object types) in JavaScript?

Developer   July 01, 2001

Forms - Binding Field Dependencies

Kas Thomas

Ever wondered what is happening behind the scenes during form processing? Kas illustrates the process with an example.

Developer   July 01, 2001

JavaScript - Finding the Current Page

Kas Thomas

Kas provides us with a code cut that helps to locate the page number when browsing through a PDF document.

Developer   July 01, 2001

Web Publishing with Acrobat/PDF

Thomas Merz's book describes the production of efficient PDF documents.

Developer   July 01, 2001

Thinking in Java

View or download Thinking in Java (2nd Ed & 3rd Ed, beta). "What a magnificent book! It's got just the right balance between code and discussion, and the exercises are good. I've done all of them to the end of Ch. 10, and I feel like I'm making good progress with Java."

  July 01, 2001

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Adding a PDF Stamp Comment

OK, so you want to stamp your document. Maybe you need to give reviewers some advice about the document's status or sensitivity. This tip from author Ted Padova demonstrates how to add stamps with the Stamp Tool along with related comments.