Pdf |
Gets or sets the background layer.
This layer renders the background and border of the signature field. The properties that specify the background and border exist in the PdfSignatureAppearance.
Default value: a PdfForm instance that renders the background and border of the signature field as specified by the background and border properties from this PdfSignatureAppearance.
Exception | Condition |
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ArgumentException | Form's bounding box must have a default origin (left and bottom must be zero) and size equal to the size of the signature field bounds. |