Node.js SDK를 통해 문서에 전자 서명합니다.

// load the module
var GroupDocs = require('groupdocs-signature-cloud');

// get your appSid and appKey at https://dashboard.groupdocs.cloud (free registration is required).
var appSid = "XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX";
var appKey = "XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX";

// construct SignatureApi
 var config = new GroupDocs.Configuration(appSid, appKey);
config.apiBaseUrl = "https://api.groupdocs.cloud";

var infoApi = GroupDocs.InfoApi.fromConfig(config);

// retrieve supported file-formats
infoApi.getSupportedFileFormats()
.then(function (response) {
  console.log("Supported file-formats:")
  response.formats.forEach(function (format) {
    console.log(format.fileFormat + " (" + format.extension + ")");
  });
})
.catch(function (error) {
  console.log("Error: " + error.message)
});