Questa voce API conserva identificatori, firme, blocchi di codice e termini PDF nella forma originale.
Component: TPdf · Unit: PDFium
Returns the XFA XML packet embedded in the document (PDF/A 2.0 deprecated the format, but Acrobat-generated forms still use it).
Syntax
property XFA;
Description
Returns the XFA XML packet embedded in the document (PDF/A 2.0 deprecated the format, but Acrobat-generated forms still use it).
Empty when the document is not an XFA document.
Wraps the corresponding PDFium API and exposes it as a TPdf instance member so consumers do not have to manage FPDF_DOCUMENT handles directly.
Remarks
- Always check
Pdf1.Active before calling page-scoped operations; methods that require an open document raise EPdfError otherwise.
- Document-edit methods (AddPage / DeletePage / UpdatePage / CreateAnnotation) leave the in-memory document dirty — remember to call
SaveToFile to persist.
- Class methods (LoadLibrary / UnloadLibrary / GetRecommendedV8Flags) can be called without a TPdf instance.
Example
if Pdf1.Active then
Pdf1.XFA;
See Also