February 15, 2010
January 12, 2010
|Actions may be triggered by several ways (PDF3200:12.6.3 Trigger Events). Most of the visible objects of a pdf could be related to a trigger dictionary and execute actions when the mouse passes the area, on clicks, onload… etc.
The catalog dictionary also has a way to add this kind of trigger dictionaries. Basically we can use the /AA tag or the /Openaction tag in the root catalog to describe an action that will be executed when the doc is opened.
We can also put an /AA triggering dictionary to the 1st page or something alike, but lets got step by step in the most common (and detectable) way, the catalog OpenAction.
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