Controlling PDF from javascript within webpage. IAC API ?

My understanding is that the AcroExch object API is only availible when the PDF is viewed in the stand alone Acrobat. It's the ActiveX interface for the full Acrobat app. The browser object exposes the smaller AxAcroPDFLib API.

But this doesn't mean you are SOL. There is a way to pass messages between HTML JS and PDF JS, if the PDF is displayed in a frame using the "Object" tag. The passed messages are just plain text. But a message handler in the PDF can use them to invoke other functions in Acrobat. For example, the "addAnnot()" function could be used to add a highlight to a page.

Take a look at the sample on this page:
http://www.windjack.com/resources/howto.php

Scroll down to the Browser/Acrobat Communication Example.

Thom Parker
The source for PDF Scripting Info
[url=http://www.pdfScripting.com]pdfscripting.com[/url]

The Acrobat JavaScript Reference, Use it Early and Often
[url=http://www.adobe.com/devnet/acrobat/javascript.php]http://www.adobe.com/devnet/acrobat/javascript.php[/url]

Then most important JavaScript Development tool in Acrobat
[url=http://www.pdfscripting.com/public/34.cfm#JSIntro][b]The Console Window (Video tutorial)[/b][/url]
[url=http://www.acrobatusers.com/tutorials/2006/javascript_console][b]The Console Window(article)[/b][/url]