Acrobat JavaScript, Introduction to Acrobat JavaScript, Acrobat JavaScript Scripting Guide

Modifying the User Interface

Adding Navigation to PDF Documents

Creating Page Thumbnails

object provides methods for adding and removing thumbnails in a document. To

add a set of thumbnails, invoke the

creates thumbnails for a specified set of pages in the document. It accepts two optional

represent the beginning and end of an inclusive range of

For example, to add thumbnails for pages 2 through 5, use the following command:

this.addThumbnails({nStart: 2, nEnd: 5});

To add a thumbnail for just one page, just provide a value for

example adds a thumbnail for page 7:

this.addThumbnails({nStart: 7});

To add thumbnails from page 0 to a specified page, just provide a value for

following example adds thumbnails for pages 0-7:

this.addThumbnails({nEnd: 7});

To add thumbnails for all the pages in the document, omit both parameters:

this.addThumbnails();

To remove a set of thumbnails, invoke the

which accepts the same parameters as the

method. For example, to

remove pages 2 to 5, use the following code:

this.removeThumbnails({nStart: 2, nEnd: 5});

Adding Page Actions with Page Thumbnails

event with a page thumbnail. The most straightforward

way of doing this is to specify a

To customize a page action with Acrobat JavaScript, invoke the

method for the page to be opened. In the following example, a greeting

is displayed when the user clicks on the thumbnail for page 2:

this.setPageAction(2, "Open", "app.alert(‘Hello’);");

The advantage of this approach is that you can dynamically build JavaScript strings to be

used in the method call.

You can use Acrobat JavaScript to customize the appearance and behavior of the

bookmarks that appear in the

navigation panel. Every PDF document has an

, which is the root of the bookmark tree for the

document. It is possible to recursively add and modify levels of bookmarks underneath the

root. Each node is a

object which can have any number of children.

Acrobat JavaScript Scripting Guide