Using CoSign and in case of multiple signatures, how do you specify which signature to use using SOAP API? -

i using cosign developer account , have created several graphical signatures. using sample code sign pdf file , works, able enumerate signatures couldn't figure out how specify signature use out of account's signatures list.

code sample used:

package trial;  import com.arx.sapiws.dss._1.*; import java.io.file; import java.io.fileinputstream; import java.io.fileoutputstream; import java.util.list;  import oasis.names.tc.dss._1_0.core.schema.documenttype.base64data; import oasis.names.tc.dss._1_0.core.schema.*; import oasis.names.tc.saml._1_0.assertion.*;  public class multipesignatures {      public static void main(string[] args) throws exception {          string filename = "d:/demo - copy.pdf";         string signerusername = "";         string signerpassword = "";          if (!checkfile(filename)) {             system.out.println("cannot find '" + filename + "' or read/write protected. aborting.");             return;         }          // user's graphical signatures         list<graphicimagetype> gsignatures = listgraphicalsignatures(signerusername, " ", signerpassword);         (graphicimagetype image : gsignatures) {             system.out.println("image: " + image.getgraphicimagename());         }          signpdf(filename, signerusername, signerpassword);     }      private static void signpdf(string filename, string signerusername, string signerpassword) {         system.out.println("trying sign '" + filename + "' '" + signerusername + "' password '" + signerpassword + "' ...");          byte[] filebytes = getpdfbytes(filename);         base64data corepdfbytes = new base64data();         corepdfbytes.setvalue(filebytes);         corepdfbytes.setmimetype("application/pdf");         documenttype mydoc = new documenttype();         mydoc.setbase64data(corepdfbytes);          // set signer - username/domain         nameidentifiertype cosignuserprops = new nameidentifiertype();         cosignuserprops.setvalue(signerusername);         cosignuserprops.setnamequalifier(" ");          // set signer - password         cosignauthdatatype cosignpassword = new cosignauthdatatype();         cosignpassword.setlogonpassword(signerpassword);          // set signer - username+password         claimedidentity cosignuser = new claimedidentity();         cosignuser.setname(cosignuserprops);         cosignuser.setsupportinginfo(cosignpassword);          //set signature field settings         sapisigfieldsettingstype sigfieldsettings = new sapisigfieldsettingstype();         sigfieldsettings.setname("sigfield");         sigfieldsettings.setinvisible(boolean.false);         sigfieldsettings.setx(150);         sigfieldsettings.sety(110);         sigfieldsettings.setwidth(150);         sigfieldsettings.setheight(50);         sigfieldsettings.setdependencymode(dependencymodeenum.independent);         sigfieldsettings.setsignaturetype(signaturetypeenum.digital);         sigfieldsettings.setemptyfieldlabel("");         sigfieldsettings.setpage(1);          //initiate request components         requestbasetype.inputdocuments inputs = new requestbasetype.inputdocuments();         inputs.getotherordocumenthashortransformeddata().add(mydoc);          requestbasetype.optionalinputs optinputs = new requestbasetype.optionalinputs();         optinputs.setsignaturetype("http://arx.com/sapiws/dss/1.0/signature-field-create-sign");         optinputs.setclaimedidentity(cosignuser);         optinputs.setsapisigfieldsettings(sigfieldsettings);         optinputs.setreturnpdftailonly(boolean.true);          //initiate connection cosign sapi service         dss service = new dss();         dsssoap port = service.getdsssoap12();          //initiate request         signrequest request = new signrequest();         request.setoptionalinputs(optinputs);         request.setinputdocuments(inputs);         request.setrequestid("dummyrequestid");          //make call         dsssignresult result = port.dsssign(request);          //check result:         responsebasetype.result rc = result.getresult();         string errmsg = "" + rc.getresultmajor();         if (errmsg.compareto("urn:oasis:names:tc:dss:1.0:resultmajor:success") != 0) {             system.out.println("cannot sign '" + filename + "' got: " + rc.getresultmessage().getvalue());             return;         }          system.out.println("trying append signature '" + filename + "' ('" + signerusername + "') ...");          // if ok signature:         dsssignresult.signatureobject sig = result.getsignatureobject();         dsssignresult.signatureobject.base64signature b64sig = sig.getbase64signature();          try {             fileoutputstream fos = new fileoutputstream(filename, true);             fos.write(b64sig.getvalue());             fos.close();         } catch (exception e) {             system.out.println("error writing pdf file: " + e.getmessage());             return;         }          system.out.println("signature of '" + signerusername + "' appended '" + filename + "'.");     }      private static list<graphicimagetype> listgraphicalsignatures(string username, string domain, string password) throws exception {         system.out.println("retrieving list of graphical signatures user: " + username);          dsssignresult result;         try {             //initiate connection cosign sapi service             dss service = new dss();             dsssoap port = service.getdsssoap12();              signrequest request = new signrequest();              requestbasetype.optionalinputs optinputs = new requestbasetype.optionalinputs();              // set signature type (enumerate graphical signatures)             optinputs.setsignaturetype("http://arx.com/sapiws/dss/1.0/enum-graphic-images");              // set username / password             claimedidentity cosignuser = new claimedidentity();             nameidentifiertype username = new nameidentifiertype();             username.setvalue(username);             username.setnamequalifier(domain);             cosignuser.setname(username);              cosignauthdatatype userpass = new cosignauthdatatype();             userpass.setlogonpassword(password);             cosignuser.setsupportinginfo(userpass);             optinputs.setclaimedidentity(cosignuser);              // set flags             optinputs.setflags(long.parselong("00ff0000", 16));              // done, make call:             request.setoptionalinputs(optinputs);             request.setinputdocuments(null);             result = port.dsssign(request);              // check result:             responsebasetype.result rc = result.getresult();              string errmsg = "" + rc.getresultmajor();             if (errmsg.compareto("urn:oasis:names:tc:dss:1.0:resultmajor:success") == 0) {                 return result.getoptionaloutputs().getavailablegraphicsignature();             } else {                 throw new exception(rc.getresultmessage().getvalue());             }         } catch (java.rmi.remoteexception e) {             throw e;         } catch (exception e) {             throw e;         }     }      private static byte[] getpdfbytes(string filename) {         byte[] pdf;         // read file buffer         try {             file file = new file(filename);              if (!file.canread()) {                 return null;             }              if (!file.canwrite()) {                 return null;             }              pdf = new byte[(int) file.length()];             fileinputstream fos = new fileinputstream(file);             fos.read(pdf, 0, (int) file.length());             fos.close();         } catch (exception e) {             return null;         }         return pdf;     }      private static boolean checkfile(string filename) {         try {             file file = new file(filename);              if (!file.canread()) {                 return false;             }              if (!file.canwrite()) {                 return false;             }         } catch (exception e) {             return false;         }         return true;     } } 

just grab name of preferred graphical signature , set described in answer previous question.