Adobe acrobat 7.0.5 sdk Manual De Usuario

Working with Metadata

Object data is generated by the authoring application, such as Microsoft Visio. You can also 
attach additional name/value pairs to a set of content objects.

You can generate object data by inserting pdfmarks into the PostScript file to be processed 
by Distiller. Using pdfmarks requires that you know PostScript well enough to either modify 
the PostScript file directly, or modify the authoring application to generate the appropriate 
pdfmarks in the PostScript stream. For more information, see 

 , the pdfmark Reference Manual., and the PDF Reference.

In an existing PDF document, you can use the 

 APIs to create object data 

programatically from a plug-in.

Beginning in Acrobat 7.0, you can access object data from a plug-in and from Acrobat 
JavaScript. 

From a plug-in, you use C APIs to:

●

Enumerate the 

 objects in a document which have user properties 

associated with them

●

Enumerate the object data associated with a 

 object as either 

 or 

 objects

●

Check whether a PDF document or specific 

 has any user properties 

associated with it

●

Find the ancestor or child node in the structure tree of a 

 that has user 

properties

●

Search for object data using the 

 flag to the Search plug-

in.

You can search object data from Acrobat JavaScript by using the 

 object’s 

 property. There are no C APIs to search for object-level metadata from 

a plug-in.