Syntax
Visual Basic
C#
Managed Extensions for C++
C++/CLI
Parameters
- options
- XfdfOptions object which configures the export operation. Any PDF Annotation that cannot be represented as XFDF, or corresponds to an unsupported XFDF element, is ignored.
Return Value
Encoded XFDF text data.Exceptions
| Exception | Description |
|---|---|
| System.NullReferenceException | Thrown when there is an attempt to dereference a null object reference. |
| System.ArgumentException | Thrown if the parameter WhichPage equals XfdfOptions.AllPages and the parameter WhichAnnotation does not equal XfdfOptions.AllAnnotations. |
| OperationStoppedException | Thrown if the method was stopped before it completed. |
| PdfXpressLibraryException | Thrown for various conditions including:
|
| PdfXpressNotIntializedException | Thrown if invoked before PDF Xpress is initialized. |
| PdfXpressLicensingException | Thrown if this feature is unavailable for the current license edition. |
| PdfXpressException | Thrown when there is a PDF Xpress exception. |
Remarks
The parameter whichPage governs which page participates in the export operation. If equal to AllPages, then all pages in the PDF Document are eligible.
The parameter whichAnnotation value governs which PDF Annotation participates in an export operation. If equal to AllAnnotations, then all PDF Annotations on a page are eligible.
The XfdfOptions.WhichEncodingName value governs the encoding of the XFDF data emitted.
The XfdfOptions.CanCreateAnnotations value is ignored.
The XfdfOptions.CanModifyAnnotations value is ignored.
The XfdfOptions.CanDeleteAnnotations value is ignored.
The following XFDF 2.0 Draft annotations are supported--
- caret
- circle
- freetext
- highlight
- ink
- line
- polygon
- polyline
- square
- squiggly
- strikeout
- text
- line
- underline
The following XFDF 2.0 Draft annotations are not supported--
- fileattachment
- sound
- stamp
