Seeding a signature field in Livecycle design

Question

Creating a signature field is straight forward. However I want to seed the 1st sig field to make it an 'author' signature and allow type 2 changes (The permitted changes are filling in forms, instantiating page templates, and signing. Other changes invalidate the signature.).
I know how to do this with javascript in Acrobat forms. But in Livecycle I cannot find how to set the seed on the field.
Any advice appreciated please.

Answer 1

This cannot be done using LiveCycle Designer but here are other options
Option # 1
A simple orchestration can be created using addSignatureField/ModifySignatureField
In workbench Select the activity(addSignatureField/ModifySignatureField) and Go to Process Properties
Under Advanced Panel --> Signature Type(In property editor)
Select Certification Signature radio button and "Annotations,form fill-in and digital Signatures" drop down
Option # 2
using Client SDK Java API, Here is code snippet
    Document inDoc = new Document(new File(inputFile), false);
    PDFSignatureFieldProperties pdfSigFldProps = new PDFSignatureFieldProperties();
    PDFSeedValueOptionSpec pdfSeedValueOptionSpec = new PDFSeedValueOptionSpec();
    pdfSeedValueOptionSpec.setMdpValue(MDPPermissions.AnnotationFormChanges);
    pdfSigFldProps.setSeedValue(pdfSeedValueOptionSpec);
    Document outDoc = signatureServiceClient.modifySignatureField(inDoc, sigFieldName, pdfSigFldProps);
    outDoc.copyToFile(new File(outputFile));
Javadocs are available at http://livedocs.adobe.com/livecycle/8.2/programLC/programmer/javadoc/
--Santosh