• Create BookmarkCreate Bookmark
  • Create Note or TagCreate Note or Tag
  • PrintPrint

8.5. Actions

Instead of simply jumping to a destination in the document, an annotation or outline item can specify an action (PDF 1.1) for the viewer application to perform, such as launching an application, playing a sound, or changing an annotation's appearance state. The optional A entry in the annotation or outline item dictionary (see Tables 8.11 on page 571 and 8.4 on page 555) specifies an action to be performed when the annotation or outline item is activated; in PDF 1.2, a variety of other circumstances may trigger an action as well (see Section 8.5.2, “Trigger Events”). In addition, the optional OpenAction entry in a document's catalog (Section 3.6.1, “Document Catalog”) may specify an action to be performed when the document is opened. PDF includes a wide variety of standard action types, described in detail in Section 8.5.3, “Action Types.”

8.5.1. Action Dictionaries

An action dictionary defines the characteristics and behavior of an action. Table 8.39 shows the required and optional entries that are common to all action dictionaries. The dictionary may contain additional entries specific to a particular action type; see the descriptions of individual action types in Section 8.5.3, “Action Types,” for details.


PREVIEW

                                                                          

Not a subscriber?

Start A Free Trial


  
  • Creative Edge
  • Create BookmarkCreate Bookmark
  • Create Note or TagCreate Note or Tag
  • PrintPrint