When adding Signature field cannot complete signature in adobe reader

Aspose.PDF Product Family
1

When adding a signature to a pdf document the signature field cannot be filled in because Document restrictions doesn’t allow signing.


Code to add signature field:

FormEditor formEditor = new FormEditor(pdfDocument);
//add field
formEditor.AddField(FieldType.Signature, “signatureField”, 1, 100, 100, 200, 150);
formEditor.Save(fileName);

How can I programmatically set to allow signing?

Kind regards,
Jan
2

Hi Jan,

Thanks for contacting support.

In order to allow PDF signing, please try using the following code snippet. For your reference, I have attached the resultant PDF generated over my end and also the image file showing properties of PDF document.

[C#]

//create DocumentPrivileges object
DocumentPrivilege privilege = DocumentPrivilege.FillIn;

// allow existing form fields filling
// and signing existing Signature fields
privilege.ChangeAllowLevel = 2;

//open PDF document
PdfFileSecurity fileSecurity = new PdfFileSecurity();

// bind source PDF file
fileSecurity.BindPdf("c:/pdftest/test_template.signed.pdf");

//set document privileges
fileSecurity.SetPrivilege(privilege);

// save PDF file with new privileges
fileSecurity.Save("c:/pdftest/test_template.signed_Allowed.pdf");