Adobe acrobat 7.0.5 sdk 사용자 설명서
Using Online Collaboration and Annotations
Using Annotations in Document Workflows
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Annotations and Plug-ins
The
PDAnnot
class is the abstract superclass for all annotations (see the PDF Reference).
Acrobat and Adobe Reader have two built-in annotation classes:
PDTextAnnot
and
PDLinkAnnot
. Plug-ins can add movie, Widget (form field), and other annotation types.
You can define new annotation subtypes by creating new annotation handlers (see
). There are no objects of type
PDAnnot
, but
your plug-in can use
PDAnnot
methods on any subclass of
PDAnnot
.
The Acrobat SDK provides three useful macros to cast among
PDAnnot
and its text
annotation and link annotation subclasses. These are:
●
CastToPDAnnot
●
CastToPDTextAnnot
●
CastToPDLinkAnnot
The
PDAnnot
methods include:
See the Acrobat and PDF Library API Reference for more information.
Annotations and the IAC API
You can use the
AcroExch.PDAnnot
object in the IAC API to set, modify, and access
annotation information from external applications.
Creating New Annotation Types
PDF supports many standard annotation types. Your plug-in can create new annotation
types, including any data they need. For example, a custom annotation type might allow a
user to draw (not just type) in an annotation, provide support for multiple fonts or text
styles, or support annotations that can only be viewed by specific users.
types, including any data they need. For example, a custom annotation type might allow a
user to draw (not just type) in an annotation, provide support for multiple fonts or text
styles, or support annotations that can only be viewed by specific users.
Support for new annotation types can be added by defining and registering an annotation
handler. The Acrobat Movie plug-in, for example, uses this to support video annotations.
handler. The Acrobat Movie plug-in, for example, uses this to support video annotations.
To add a new annotation type, a plug-in must provide a set of callbacks, specify them in the
AVAnnotHandler
structure, and register them with
AVAppRegisterAnnotHandler
.
For more information, see the Acrobat and PDF Library API Overview.
PDAnnotGetRect
Gets an annotation’s size and location.
PDAnnotGetSubtype
Gets an annotation’s subtype.
PDAnnotIsValid
Tests whether an annotation is valid.