If this property is set to a non- value, then also SignatureValidLayer and SignatureInvalidLayer properties must be set to a non- value for Adobe Reader to show the run-time created signature validity text message.

At runtime, Adobe Reader replaces the ValidityTextLayer with the dynamically created layer of the same size that shows the signature validity text message.

Default value: .

Namespace: SautinSoft.Pdf.Forms
Assembly: SautinSoft.Pdf (in SautinSoft.Pdf.dll) Version: 2025.6.5

Syntax

Copy

public PdfForm ValidityTextLayer { get; set; }

Public Property ValidityTextLayer As PdfForm
	Get
	Set

Property Value

PdfForm
The text layer used for a text representation of the state of the signature.

Remarks

Note
Prior to Adobe Acrobat 6.0 (released in July 2003), signature appearances were manipulated at run-time in order to display the validity of the signature. The validity was shown as a graphic icon and with an additional, optional text message. The manipulated portions of the signature appearance were contained in SignatureValidLayer, SignatureInvalidLayer and ValidityTextLayer. Beginning with version 6, Adobe Acrobat does not maintain support for signature appearances that can be manipulated, though legacy signatures with these appearances may continue to display correctly. Use of SignatureValidLayer, SignatureInvalidLayer, and ValidityTextLayer is not recommended because support of these layers in future versions of Adobe Acrobat may be discontinued at any time. Some applications will specifically warn against the presence of signatures with these layers because, for conformance with various signed document standards, signature appearances should be static.

Note

Prior to Adobe Acrobat 6.0 (released in July 2003), signature appearances were manipulated at run-time in order to display the validity of the signature. The validity was shown as a graphic icon and with an additional, optional text message. The manipulated portions of the signature appearance were contained in SignatureValidLayer, SignatureInvalidLayer and ValidityTextLayer. Beginning with version 6, Adobe Acrobat does not maintain support for signature appearances that can be manipulated, though legacy signatures with these appearances may continue to display correctly. Use of SignatureValidLayer, SignatureInvalidLayer, and ValidityTextLayer is not recommended because support of these layers in future versions of Adobe Acrobat may be discontinued at any time. Some applications will specifically warn against the presence of signatures with these layers because, for conformance with various signed document standards, signature appearances should be static.

Reference

PdfSignatureAppearance Class

SautinSoft.Pdf.Forms Namespace